stereo problem, no sound

[Anti-Rains]

i just installed a JVC deck into my 91 GT, the deck is brand new and came with a wiring harness that fit the stock harness, the deck will turn on, recognize cd's, find radio stations, just about everything, except no sound comes out of the speakers. Is there a wire i should look for to be connected, or is the wiring harness maybe the wrong one? The harness has 3 unconnected wires coming from where it connects to the stock harness, they are blue with white stripe, orange with white stripe, and solid blue. There is one wire coming from the deck that is unconnected, it is blue with a white stripe and some grey dashes (all wires coming from deck have grey dashes). Any ideas on what the problem could be?

thanks

jeremy

oh and everything worked with the stock deck

 

[HardmanGT]

Sounds like you may have the premium sound option and the factory amp isn't coming on. It may not be powered up with the aftermarket harness. Just a guess.

 

[mirage86]

Are you sure that the harness you are using is for your car? Although the wire colors on the adapter harness may not match, I believe that a solid blue wire is the remote wire for an amplifier. Look on the vehicle side of the harness and locate which pairs of wires go to your speakers. I know you know what you're doing but make sure that all neg wires on the vehicle side of the harness match with neg speaker wires on the radio side of the harness and do the same with the pos wires. Unless something is wrong with the deck, this is all that can be wrong. You should have a constant hot (I believe it's yellow for clock, memory), a hot (red) that usually works off the ignition, and a ground. There will prob be a wire for an electric antenna and a remote wire for an amp. The rest will be speaker wires.

This info may be useless to you but just trying to help.

 

[Anti-Rains]

thanks mirage i will look into what you said

jeremy

 

[Scorcher2005]

Are you sure that the harness you are using is for your car? Although the wire colors on the adapter harness may not match, I believe that a solid blue wire is the remote wire for an amplifier. Look on the vehicle side of the harness and locate which pairs of wires go to your speakers. I know you know what you're doing but make sure that all neg wires on the vehicle side of the harness match with neg speaker wires on the radio side of the harness and do the same with the pos wires. Unless something is wrong with the deck, this is all that can be wrong. You should have a constant hot (I believe it's yellow for clock, memory), a hot (red) that usually works off the ignition, and a ground. There will prob be a wire for an electric antenna and a remote wire for an amp. The rest will be speaker wires.

This info may be useless to you but just trying to help.

It doesnt matter if negative is hooked to positive (reverse polarity) and vice versa. The speakers would still play, they would just be 180* out of phase. The problem is your factory amp. find the amp in your car (somewhere behind glove box) and trace the wire (which is one of the blue ones) from it to the stereo harness and make sure it is making contact. I didnt have the problem in my car, but my buddy had the problem in his avenger. soon as we connected the amp line out from the receiver to his "premium factory amp", it worked fine.