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Car radio wiring

Power wires are connected but radio will not turn on

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  • tahitiman15 Nov 19, 2008

    yes everything is hooked up correctly



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Do you have the amp power wire connected to the power wires for the radio

Posted on Nov 18, 2008


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Hook up radio to jeep cherokee

buy a 12 volt lamp tester (like a screw driver)check the wires when car ignition switch is turned on ,connect the wire side of tester to metal ground of ur car which supposed to be negative and other side of tested pin to the wires jack of ur car which is for radio connection previously,find out 2 connection points which are positive terminals one lights when igni switch is turned on the other one is permanent power there are three wires of ur new radio one is black which should be connected to ground or metal body of ur car negative terminla and yellow connected to permanet power terminal and red one should be connected to power turned on with the swith which is called switched power
.now try to find out other four groups of terminal two for front speaker two for rear speaker each speaker has two wires ,can find out the connections by connecting a dry battery cell to the wires to identify which wires of speakers sound when battery is connected ,front pair of wires is for front left grey pair is for right front green pair of wires of ur new stereo is for left rear speaker and purple or blue pair is for right rear speaker
.these colors are globally known .the wires of speakers must not mixed with each other
black is for ground negative red is witched power and yellow for permanent power.
donot use long screws to fit ur new radio .Best of luck

Nov 18, 2013 | JVC KD-S5050 CD Player

1 Answer

1994 honda accord radio wont save settings.

If you have a multimeter or test light, try to find a wire that still has 12v when the key is off. Connect that wire to the yellow wire of the radio. The yellow wire has to have constant voltage going to it to maintain the memory.

Feb 11, 2013 | JVC KD BT11 CD MP3 CAR RADIO IPOD AUX...

1 Answer

I have an 89 camaro rs, I am getting power to the red power wire on my radio, but when I turn on the car I get no response and cd radio will not work. Any ideas?

there are two power wires to most radios. usually red and yellow. the red wire provides 12v when the key is turned on and yellow provides a constant 12v. both must have power to turn the radio on. there will be two fuses for the radio also so make sure both fuses are good. the only other thing that will keep the radio from coming on is the ground wire "usually black" that has to be connected to the ground in the factory harness or you can just connect it to any bare metal behind the dash

Oct 20, 2012 | Cars & Trucks

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I have a 1990 Celica, trying to put in new radio. Got everything wired up correctly, Constant - blue/yellow, acc - gray, ground - brown and it won't come on. Radio fuse (top center 15 amp) is good,...

You have it right. Use a 12 volt test light to see if there is power between the gray and brown wires when the key is on. If there is power there, you may have got hold of a bad radio.

1990 Toyota Celica Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Blue/Yellow, connects to yellow
Radio Switched 12V+ Wire: Gray, connects to red
Radio Ground Wire: Brown, connects to black
Radio Illumination Wire: Green, do not use
Radio Dimmer Wire: N/A
Radio Power Antenna Trigger Wire: Black/Red
Radio Amplifier Turn On Trigger Wire: N/A
Front Speakers Size: 4? Speakersir?t=modilife-20&l=as2&o=1&a=b00009uhre
Front Speakers Location: Dash
Left Front Speaker Wire (+): Pink
Left Front Speaker Wire (-): Purple
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Blue
Rear Speakers Size: 5 1/4? Speakersir?t=modilife-20&l=as2&o=1&a=b00009uhre
Rear Speakers Location: Side Panels
Left Rear Speaker Wire (+): Black
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Red
Right Rear Speaker Wire (-): White

Oct 29, 2011 | 1990 Toyota Celica

1 Answer

Which color is the memory wire im tired of resetting time and audio configurations plz help

basically you have a power wire which should be wired to a switched connection and a memory wire which should be wired to a unswiched connection. look on your fuse box under the dash and connect the power wire first to a switched fuse (one that shuts off the radio when you turn off key) then look for a fuse (with same power wire )that when you turn off the key the radio stays on, this is the fuse that you connect the memory to,or you can connect the memory wire directly to the battery but you must use an inline fuse or you burn up your radio,car etc.

Jul 05, 2010 | JVC KD-G120 CD Player

1 Answer

I have a newer radio and want to install it, but isnt sure which wires connect, they are different colors

use a volt-meter or test light to find the positive supply power from your vehicles wires, and the ground wire too. attach those to the new radio's power wires (and attach the new radio's ignition power wire, or switching wire to the positive power wire from your vehicle too). The point will be to get power to the new radio so that you can do a trial by error to find which speakers turn on when you connect them. Just follow the sound! after you have found all the speaker wires. the last thing is to find which wire from your vehicle needs to be attached to the ignition wire on your radio. This wire makes sure your radio is off when your keys are turned off so not to drain the battery. if you cannot find a switching ignition wire, run a wire to a connection in the back of a fuse panel connection (which you can test any connection with your volt meter to see if it shuts off with the key.

Nov 21, 2009 | 1988 Jeep Comanche

1 Answer

How do you install a jvc cd player in a 95 carolla is the colors the same

Most new radios have a diagram or wiring scheme that tells you which wire goes where. Usually there are 2 power wires(one goes to ignition wire and the other to the battery B+ wire). Then there are the Power antenna and Ground wires. Once you have these in place you can figure out the speaker wires. #1 You need a DMM (Digital Multimeter), wirecutters, wirenuts, lineman pliers and electric tape. #2 There are only 2 wires that should put out a voltage. So set your DMM to DC voltage at 20 voltage range. (If your battery is 24V set your DMM to next highest range.) Connect the black test lead of your DMM to ground(usually a black wire). Connect your red test lead of your DMM to all of the dash wires ONE AT A TIME until you find ONE that puts out a voltage of approx. 12 V. That is your Battery B+ wire. Mark it and set it aside. Now to find the ignition wire. Note that your ignition wire will not put out a voltage until you turn the ignition ON. So turn ignition ON and find it by connecting blacl test lead of DMM to ground wire and the red test lead of DMM to each of the remaining wires until you read 12 V. Be sure to double check by reading both wires while ignition ON and OFF. Mark the Ignition wire and set aside. #3 Now that the wires that put out a voltage are out of the way, set your DMM to Continuity Tester. This test is done with power off(no more power emitting wires anymore remember). This test checks for continuity or a path which current can flow through. It does so by 'BEEPING' when the leads are connected to both ends of a connecting wire. So start checking the wires by connecting black lead to one wire and red to another wire. Mismatch until you find two that will make a beep. That pair of wires connect to a speaker. Band the pair together and find 3 more pairs. Those four pairs are the wires to the four speakers in your car. #4 You can now make the proper connections using the wiring scheme on the radio. So far you can connect the ignition wire and the battery wire. Theoretically if you were to turn on the ignition power is going into the radio but the negative/ground needs to be connected for the power to flow. Other than the other 8 speakers wires there should only be 2 wires remaining coming out of the dash. One would be the ground and the other the power antenna. With the ignition on and the radio turned on tap the power antenna wire from the radio to one of the 2 remaining wires. Taping the ground would not power the antenna but taping the power antenna wire will. So find out which is the power antenna by quickly tapping it. Most ppl would not recommend this type of testing. Make proper connections once finding which is which. #5 At this point the wiring scheme on the radio tells which pair of speaker wires is for which of the four speakers in the car. 1) rear right; 2) rear left; 3) front right; and 4) front left. With the ignition on and the car radio on take any pair from the radio and soft connect to a pair on the car. One of the speakers will play. Note which one and find its coresponding connection on the wiring scheme. Do two more in the same manner which would only left one on the car and one pair on the radio. #6 Remember to make good connections using the linemans pliers to twist the wires tightly together. Plus secure all connections with wire nuts and to be safe also secure with the electric tape. Try to keep wires neat and secure. I hope this helps. =)

Oct 10, 2009 | Car Audio & Video

3 Answers

My car radio has to be reset every time the car turns off

i don't know what kind of car that you have but on that radio there should be two power wires one is red and the other is yellow,the red wire connects to the wire in the car that will only have power when the key is turned to the on position,the yellow wire connects to the wire in the car that always has power with the key off.........

Jul 01, 2009 | Panasonic CQ-C1303U CD Player

2 Answers

My cd player will not work in 2005 my chrysler 300 the radio works but the cd player wont work whats wrong

Your chrysler 300 has a factory amplifier built in to the system. Seems you have connected the radios antenna turn on wire (usually solid blue) to the factory amp turn on wire. You must disconect the radios antenna turn on wire and connect the blue wire with a white stripe to the factory amp turn on wire. The problem with the blue antenna turn on wire is that when you are switching from radio to cd the unit is shutting off power on that wire(because it thinks its trying to lower a power antenna) Once the correct blue/white wire is connected the factory amp will stay on wether its am/fm or cd. Hope this helped

Jun 10, 2009 | Car Audio & Video

1 Answer

Power Never Comes on

that remote wire has to be hooked up to the power or the radio power antenna wire which will switch the remote wire on when the radio is turned on, so that remote wire really should be hooked to the radio wire that gets power when the radio is turned on , thats why the sub is not turning on


Oct 26, 2008 | Infinity BASSLINK Car Subwoofer

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