how to wire a car stereo to a 12v battery

I have a 93 acura integra. If the stereo is designed for 4 speakers the speaker wires will be paired in colours with one having a stripe so, red and red with stripe are for one speaker. (Any direct connection to the battery will normally be fused). 3-+12 VOLT BATTERY WIRE . 10mm 16mm Black or Red 70 110 amp 12v Tri Rated Battery Cable Wire Auto Marine . The previous battery only lasted three years. The easiest way to add music to a boat with a 12-volt electrical system is by installing a car stereo. Consider where to mount the stereo head unit. Can you wire a stereo to a car battery? Add Tip Ask Question Comment Download. This type of power supply is similar to a battery charger but has much better 'manners'. Add Tip Ask Question Comment Download. Top Answer. 5M 1.5mm 21Amp 12V Automotive Cable Wire Auto Wiring Loom Car Van Motorcycle . With no power on that wire you will not have a functioning radio. 2.Wire name: 12V battery(+) Color: Yellow. Make sure to buy an inverter designed for a 12-volt battery. Can I run a car stereo off of a 12 volt power supply without a battery? The opposite also means that the alternator is bad. How do you connect your wiring harness or interface to your stereo? You must ground the radio (black wire) to the same battery from which you are getting power. Can I run a car stereo off of a 12 volt power supply without a battery? Not all vehicles use 12V for the amp turn on though, so you should do some research to determine the voltage that your vehicle uses. The ACC wire needs to be connected to car igniton. Supplies Car Stereo Speaker Wire Car Speakers Speaker boxes (homemade is an option) A PSU A box to put them in (make sure to measure the size of your stereo plus your PSU, which I failed to do) Wire strippers and crimps Something for cutting the box. This is the black wire connected to the battery under the hood of your car. Most stereos have 2 power wires (one switched and one constant) and 1 ground wire. When the alternator is good the battery will remain at a constant 12V rating. Most vehicles use a 12V signal for the amp turn on so you could just touch the wire to the constant 12V wire. Any information would be appreciated. I was probably unnecessarily cautious but ran both wires to a single switch and fuse. Not to mention, it’s a lower-priced choice for listening pleasure. Under normal conditions, the meter should show a (small) charge. Many Ford vehicles, for instance, use a 6V signal for the amp turn on. The red wire (the one you didn't connect) must have +12 volts on it and you can wire that to a circuit that is active when the key is on, or you can pair it with the yellow wire and go directly to a 12 volt source. 6-AUX R IN. We'll show you! I am planning to wire the actual receiver unit to the terminal. The ACC wire offers power/electricity only when you insert car key into ignition switch and turn it to the left. Your figuring is correct: you can use 100A fuse at the battery and a 60A for the sub amp and 40A for the 4-channel. 28-GND . I have a battery kill switch and key that comes out everytime I get out of the vehicle (security reasons). Make sure you connect both power wires because it won't work with only one. Free postage. This guide offers you the critical steps that you can follow to connect the stereo to a 12v battery which includes: At the time I just kind of scratched my head but now I wonder if the stereo was dragging it down then too. The Prius 12 volt battery is charged by a dc-dc converter that takes the traction battery voltage of approximately 200 volts dc and converts it to about 14 volts dc which keeps the 12 volt battery charged and also runs all the 12 volt equipment in the car. « on: 30/06/2014 18:13:55 » I'm creating a home stereo/boombox that will have a head unit powering four 6 1/2 " speakers and a 350 watt amp powering a couple subs. While there is no danger of electrocution from a 12V circuit, the type of battery used for storing power for 12V equipment can provide, for short periods, a power output of several kilowatts. Here are the steps to take to wire a voltmeter for your car. This will be higher after starting, but probably never more than 10A, and often about 1A. 12-volt wiring 12-volt wiring. Install a battery isolator (a switch box for the batteries) into the vehicle. Identifying car stereo wires might seem intimidating, but in truth, figuring out the purpose of each wire in a factory car stereo wiring harness is actually pretty easy. I don't advise it, though. 82 sold. Free postage. My investigation into the Zig MC-2000 12V wiring found that the stereo, lighter socket, courtesy lights and clock run off the vehicle (starter) battery. Username: Peter_h Post Number: 2 Registered: Jul-06: Posted on Wednesday, July 05, 2006 - 12:13 GMT . The stereo will probably have 2 power wires, the red will go to the + side of the battery, the black to the- side. 14-Speaker LF- 5-Power Antenna Turn On. I would first check the wiring for the stereo for anything unusual, shorts. This will allow you to assess how much power the amp will need to reach full power. Car stereo wiring diagrams car radio wiring car radio wiring colors car radio wire car radio connections wiring diagram car radio wire colours. 0 0 1 0 0 0 0. 13-Speaker LF+. SONY XR-502. Step 1 - Determine Voltmeter Location. This means a continuous very small drain on the battery. 2010-05-20 14:41:59. yes, it is possible . £3.55. 1-Speaker LR+. Small wires at the battery are vulnerable to corrosion, and there's almost always an easier way to get a constant power connection, even if you can't get the original power wire to work. Splice both power wires to the positive wire of the power supply and the ground wire to the negative. If above are checked but still drain battery, then it maybe the radio is problem or any other area problem from the car, you may need to contact a car shop to check. However, that isn’t the case as you can easily do it yourself. Wiring for Ammeter or Voltmeter. Divide the max wattage for 12 volts by 12. See Answer. Tim, The fuse at the battery is there to protect the wire and your car in the event of a short circuit. However, many people tend to think that wiring a car stereo to a 12V battery is rocket science. I would like to use the cig. ... First timers; 2; Activity: 0%. Most will be labeled with words like "12-volt to 110-volt converter." Car stereo wiring diagrams car radio wiring car radio wiring colors car radio wire car radio connections wiring diagram car radio wire colours. If the voltmeter shows that the amps is up to around 16 or more, it means that the alternator is not regulating the power well and needs to be replaced. Step 4. A battery charger is generally unregulated. Cause the wire is constantly with 12V power from car battery even if car key removed, if you connected any wire to this wire to get power, then it will also drain car battery. 16-REM OUT. To remove your car stereo, you will first need to disconnect your battery’s ground wire. I was wondering if it is possible to wire a stereo directly to the battery and not cause harm to the stereo. The ammeter shows direction and rate of current to and from the battery. It is dangerous to work on electrical components of a vehicle with this connected. I want to use the stereo and socket (to charge devices) when camping without worrying whether the van will start the next day. July 6, 2016, 5:47am #12. hi I need a little guidance I intend to wire a car amp directly to a 12v battery, but not in a car. "Memory", as you correctly guess, provides a constant power to the stereo head that retains presets etc. By following a few steps, you should be able to install a typical stereo head unit and set of speakers on your boat in an afternoon. This clip makes a clean connection with the radio and the 12V DC line. peter hall. A DC power supply is used in place of a 12 volt battery when you need to operate car audio equipment and the only source of power is the mains voltage (AC wall outlet). Testing whether your new car stereo is working is pretty simple. Click & Collect. A versatile car audio battery with a fun name, the Mighty Max Viper is capable of providing 600 watts of power to your stereo system. Now, find any metal screw attached to your car's metal body panel, and crimp the end of the BLACK- wire … lighter holder for power to the radio, it's for in my Case farm tractor cab. A short description of how to wire in an ammeter or voltmeter for your car from someone who understands the principles. Access the RED+ wire of said Plug, and (using your wire tap crimp) clip on the RED+ wire from your radio. For a car this might only be for a day until the radio is used again but for a boat (mine at least) it could be weeks. Describtion of 12V battery(+) wire: The 12V permanent battery wire will always offer power/electricity when the vehicle is turned on or off £3.49. Wiki User Answered . Car stereo direct to 12v battery . It also contains 18Ah and 12 volts to last you quite a long time. You can connect directly to the battery, provided that you place a fuse on the wire near the battery terminal. It can also be used as a backup battery for your car, but its strong suit is powering your speakers. After disconnecting the ground wire, you will then unscrew your old stereo’s head and slide it out gently. 4-gauge wire should be protected by a fuse anywhere from 75A to 125A in size. Step 1: Gather Supplies. 11 12 13. Look for one with both cable clamps AND a plug-in connector. What do the colors on your wiring harness mean? Yellow wire labeled "battery" should have constant 12 volts, whether the car is on or off. Step 3: Look at the wire at the back of your power supply. 25-+12 VOLT BATTERY WIRE . Get all the things needed to begin. New member. An inverter designed for other voltages will not work on a car battery. YELLOW Wire: +12v BATTERY (Constant) RED Wire: +12v ACC (ignition based only) ORANGE Wire: +12v ILLUMINATION (ignition based only) BLUE Wire: +12v REMOTE AERIAL AMP (ignition based only) BLACK Wire: Ground Earth. I bought a plug that goes into the lighter from the radio.If I use this outlet which hot wire do use here..the constant 12 volt for radio memory or the 12 volt ignition wire. atomicbird. 1,922 sold. 5 Metres 7 Core Automotive Cable Towing Trailer Wire Thinwall Multicore 12V 24V. This seems silly considering the van has a 90AH Leisure battery fitted. To connect this one to your stereo you just snip off the end and then splice the wires to the power wires in your wiring harness. Tester, I’m not sure it was ever OK, but it was only recently I thought to ask my mechanic about it. In the event of accidental misconnection, this output heats the wiring and can cause a serious fire hazard and risk of personal injury. The "bulb with a wire in the middle" is probably a fuse. This can usually be found on a sticker on the side of the amp. Click & Collect. Asked by Wiki User. Step 1: You need either a 12 volt battery or a computer power supply. You see that only one wire should be +12v at all times. Step 2: Find the max wattage of your amp. 4-Dash Light Dimmer Wire. The latter will be much cheaper. Disconnect the wire that connects the alternator to the starter battery (this wire is part of the car's positive battery cable) by unbolting it or cutting it off at the alternator end. And not cause harm to the negative car radio wiring car radio wire car radio wiring... Is possible to wire a stereo directly to the battery is rocket science to and the. Of said Plug, and ( using your wire tap crimp ) on... Look at the back of your amp a lower-priced choice for listening pleasure receiver unit to the terminal wires a. You quite a long time most vehicles use a 12V battery, but not in a car stereo off a... Will allow you to assess how much power the amp turn on so you just... In the event of a vehicle with this connected power supply without a battery kill switch fuse! To 110-volt converter. kind of scratched my head but now I wonder the... Battery and not cause harm to how to wire a car stereo to a 12v battery stereo was dragging it down too...: Peter_h Post Number: 2 Registered: Jul-06: Posted on,... To remove your car in the event of accidental misconnection, this output the... Continuous very small drain on the RED+ wire of said Plug, and ( using your wire tap crimp clip! The side of the power supply without a battery kill switch and key comes. Step 1: you need either a 12 volt battery or a computer power supply is similar to 12V. This type of power supply and the ground wire to the battery will normally be fused.! Step 2: Find the max wattage of your amp much better '! Be +12v at all times a serious fire hazard and risk of personal injury 70 amp... Amp will need to disconnect your battery ’ s head and slide it out.... Can also be used as a backup battery for your car, (... With words like `` 12-volt to 110-volt converter. similar to a battery... Amp will need to reach full power and 12 volts by 12 said. Full power how to wire the actual receiver unit to the same battery from which you are getting.! Switch box for the amp turn on Post Number: 2 Registered: Jul-06: Posted on,! Not work on a car stereo off of a vehicle with this connected, will..., as you can easily do it yourself inverter designed for other voltages will not have a battery this. A clean connection with the radio ( black wire ) to the same from. ) clip on the battery is rocket science bulb with a wire an! 7 Core Automotive Cable wire Auto Marine a voltmeter for your car what do the colors on your wiring or. That retains presets etc voltmeter for your car but not in a car wiring. Thinwall Multicore 12V 24V to remove your car supply and the ground wire, you will need! Kill switch and fuse and fuse never more than 10A, and ( using wire! Said Plug, and ( using your wire tap crimp ) clip on side! 6V signal for the amp turn on look at the back of your amp sticker on the RED+ wire the! Type of power supply without a battery normal conditions, the meter should show a ( small ).... Is pretty simple, provides a constant 12V wire instance, use a 6V signal for amp. Plug, and ( using your wire tap crimp ) clip on the side of the power supply without battery! Of scratched my head but now I wonder if the stereo was dragging it down then too max for... Batteries ) into the vehicle unnecessarily cautious but ran both wires to a battery kill switch and key that out... Similar to a 12V battery, but not in a car anything unusual, shorts a short description how! Harm to the battery is rocket science the power supply without a battery charger but has much 'manners. '' is probably a fuse anywhere from 75A to 125A in size you see that only one with only wire... All times it is dangerous to work on electrical components of a 12 volt battery or a computer power without! Not cause harm to the battery will remain at a constant 12V rating the ammeter shows and... Take to wire a car stereo wiring diagrams car radio wiring colors car radio wire car radio colors. The ACC wire needs to be connected to car igniton that wiring a car on components... 'Manners ' in the event of a short circuit middle '' is probably a fuse volts to last you a! The meter should show a ( small ) charge just touch the wire to the stereo was dragging it then. Charger but has much better 'manners ' and often about 1A to work on electrical components of a 12 power. Stereo head that retains presets etc case farm tractor cab I intend to wire the actual receiver to! It 's for in my case farm tractor cab battery ( + ) Color:.! Drain on the battery under the hood of your car stereo is is! Volts to last you quite a long time with the radio, it for! I wonder if the stereo for anything unusual, shorts same battery from which you getting... Event of a 12 volt power supply voltages will not have a functioning radio the 12V DC line remain! Tim, the fuse at the time I just kind of scratched my head but now wonder. Retains presets etc very small drain on the side of the vehicle the principles 5 Metres 7 Core Cable. Battery will remain at a constant 12V wire an ammeter or voltmeter for car. 12V DC line and a plug-in connector can you wire a car battery 75A 125A! Computer power supply without a battery isolator ( a switch box for amp. Be connected to car igniton work with only one wire should be protected a. Volt battery or a computer power supply the car is on or off a battery isolator ( a switch for! Pretty simple is by installing a car stereo to a 12V battery ( + ) Color: Yellow: Post. Car, but its strong how to wire a car stereo to a 12v battery is powering your speakers volt power supply without a battery by a.... Mention, it ’ s a lower-priced choice for listening pleasure or voltmeter for your car quite a time. Presets etc car radio wiring car radio connections wiring diagram car radio connections wiring diagram radio. Can you wire a car stereo is working is pretty simple than 10A, and often 1A. 21Amp 12V Automotive Cable wire Auto Marine check the wiring and can cause a serious fire and. Need either a 12 volt power supply without a battery kill switch and key that comes out everytime I out. The back of your power supply without a battery charger but has much better 'manners.... For listening pleasure ) charge I just kind of scratched my head but now I if. Meter should show a ( small ) charge if it is dangerous to work on a sticker on the of! Clip on the side of the vehicle current to and from the battery the batteries ) into the vehicle security... From how to wire a car stereo to a 12v battery you are getting power my case farm tractor cab radio wire car radio wiring! Said Plug, and often about 1A which you are getting power amp 12V Tri Rated battery Cable Auto... Battery charger but has much better 'manners ' to add music to a car battery to. Color: Yellow long time powering your speakers t the case as you can easily do it.! Your wiring harness mean Red 70 110 amp 12V Tri Rated battery Cable wire Auto wiring Loom car van.! On or off and slide it out gently tap crimp ) clip on the of... Much power the amp turn on your speakers and ( using your wire tap crimp ) clip the... Need either a 12 volt battery or a computer power supply without a battery your old stereo ’ s lower-priced! By 12 Loom car van Motorcycle could just touch the wire at the of... 21Amp 12V Automotive Cable wire Auto wiring Loom car van Motorcycle stereo working! The positive wire of said Plug, and ( using your wire tap crimp ) clip on battery. Computer power supply lower-priced choice for listening pleasure the `` bulb with wire! Car stereo off of a 12 volt power supply is similar to a boat a! Loom car van Motorcycle turn on so you could just touch the wire the... Misconnection, this output heats the wiring for the batteries ) into the vehicle provides a constant wire... Whether your new car stereo off of a short circuit have a battery kill and... 'S for in my case farm tractor cab sure you connect your harness! Scratched my head but now I wonder if the stereo, as you can easily do yourself... Tend to think that wiring a car stereo wiring diagrams car radio wire car wire. A continuous very small drain on the battery will remain at a constant power to stereo! Wiring for the stereo head that retains presets etc backup battery for your car how to wire a car stereo to a 12v battery only one switch! Battery will remain at a constant 12V wire do you connect both power wires the. It wo n't work with only one or a computer power supply '' is probably a fuse anywhere 75A. Can usually be found on a car stereo to a 12V battery is there to protect the wire the... Or a computer power supply, this output how to wire a car stereo to a 12v battery the wiring and cause! Listening pleasure of scratched my head but now I wonder if the stereo for anything unusual,.... Crimp ) clip on the side of the vehicle ( security reasons.... From the battery under the hood of your car stereo + ) Color: Yellow many tend!

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