1991-93 Mitsubishi 3000GT Stereo Wiring Information

does your car/did your car come stock with an infinity amp?


Constant 12V+ Red/Black
Switched 12V+ Blue
Illumination Green/White
Dimmer n/a
Antenna Trigger White/Black
Antenna Left Rear
Front Speakers 6 1/2" Doors
Left Front (+) White/Blue
Left Front (-) Black/Blue
Right Front (+) White/Red
Right Front (-) Black/Red
Rear Speakers 6" x 9" Side Panels
Left Rear (+) Yellow/Blue
Left Rear (-) Gray/Blue
Right Rear (+) Yellow/Red
Right Rear (-) Gray/Red

 

Just test the wires to figure it out, its not that hard with a multimeter and a 9v battery.

12v constant, is that, 12v no matter if the car is on or off
12v switched, nothing when the car is off, 12v when car turned on.
ground, make your own, ground to a bolt behind the radio.

To test the speakers, take your 9v battery and two wires, one to each terminal. When you have a speakers pair of wires, the speaker will pop, or sound like static. Do that for all speakers. Make sure you bypass the stock amp if still in the car. The only wire left should be the power antenna. Take a drill battery and touch it to the remaining wires, while the other end is grounded. When you hit the power antenna wire, the antenna will go up.

forgot about illumination. nothing with lights off, 12v with lights on

 

Just test the wires to figure it out, its not that hard with a multimeter and a 9v battery.

12v constant, is that, 12v no matter if the car is on or off
12v switched, nothing when the car is off, 12v when car turned on.
ground, make your own, ground to a bolt behind the radio.

To test the speakers, take your 9v battery and two wires, one to each terminal. When you have a speakers pair of wires, the speaker will pop, or sound like static. Do that for all speakers. Make sure you bypass the stock amp if still in the car. The only wire left should be the power antenna. Take a drill battery and touch it to the remaining wires, while the other end is grounded. When you hit the power antenna wire, the antenna will go up.

Decent advice except the OP will not know if he has the correct polarity with the speakers.

If he gets them mix-matched (not all wired up the same way) he will have nothing for bass, due to the speakers being out of phase.

 

No I don't think it came with a factory amp. What about all the repeat colors on the wires. Do I take all the white/blue stripe wires and connect them together to the wire for the stereo harness? thanks for the input guys I really appreciate and I can't believe I forgot about the12volt.com

 

The diagrams

 

any battery will put dc voltage across the coil. Not very good for them, so the less the better in this case.

 

is the wiring diagram the same here as it is for a 97 vr4? if so it would be AWESOME!!! if not well ill be working at this pain for a while and im just hoping to figure out how to get my damn front speakers working :-(

 

Sounds like you changed radios. Dash speakers were fed from the amp. You need to connect them up separately because the radio plug does not have those connections.