Headunit wiring harness Q's

[rockymt21]

So I have an Aiwa head unit with a harness set up to fit my old 99 tahoe. I tried plugging it into my new 2002 and the headunit turns on and all the functions work however there is no playback through the speakers. On my old tahoe I had to cut and splice together 2 different harnesses to make it work, I used butt connecters, so I am thinking that maybe one of the wires has come loose or something? Any ideas as to why there is no sound?

Thanks, Dan

 

[rockymt21]

Anyone?

 

[T3rry]

depending on the headunit, if one speaker is shorted or grounded out, it can cause no audio to come out.

i'd suggest buying the proper harness and re-wiring it.

 

[JKmotorsports]

depending on the headunit, if one speaker is shorted or grounded out, it can cause no audio to come out.

i'd suggest buying the proper harness and re-wiring it.

The harness is the same from 88-02 GM trucks.

Use your blue remote turn-on wire from the deck and connect it to the pink wire on the smaller factory secondary harness.

 

[rigo_jones]

i think if you have a bose system u must power up the stock amp or u wont hear nothing.

 

[rockymt21]

The harness is the same from 88-02 GM trucks.

Use your blue remote turn-on wire from the deck and connect it to the pink wire on the smaller factory secondary harness.

The pink as in the 12 volt ignition wire?

 

[JKmotorsports]

I believe it's a 9-pin harness. Depending on your audio system rpo option, you may need to apply 12 volts to the pink wire in the 9 pin harness to activate the relay for the uplevel option amp, regardless if you have the standard or premium Bose rpo.

 

[rockymt21]

I believe it's a 9-pin harness. Depending on your audio system rpo option, you may need to apply 12 volts to the pink wire in the 9 pin harness to activate the relay for the uplevel option amp, regardless if you have the standard or premium Bose rpo.

I am trying my best to understand that, but I am not very savy with this stuff. What does 9-pin harness mean? So your saying I still need to connect the pink 12v wire to the blue wire? Also don't have the bose premium sound option.

 

[JKmotorsports]

When you unplug your radio, there is the main harness with power and speaker. There should be another smaller 9-pin harness ( 9 wires coming out of the plug, iirc it's 9). The pink wire from that plug should not have 12volts coming from it. If it does, you have the wrong wire. You need to add 12 volts to it by splicing in your blue/white or blue wire (depending on hu model) into that pink wire. If you have the uplevel radio option with the standard Bose, it will have an amplifier, but not have the Bose logo on the grilles. If you have the premium Bose, it will have the Bose logo on the grilles.

 

[rockymt21]

Ok I get it now, thanks man.