I installed a deck in my 85 GS hooking just the battery wire,ignition power, and ground. It worked perfectly with the car off but when I started the car something was wrong. When I reved the engine my speakers distorted. Almost as if I could hear the engine through my speakers. So I turn of the car and then my deck does not work. The light just flashes on and off and a pulse sound comes out of the speakers. Also my car would not start. When I turned the key my clock whould go out. I checked all the fuses and all where fine. Anyways I had to disconnet the deck to get my car to start. Why was my deck working before I started the car. and not after? (I have never installed a deck before). Now that I think of it, the metal casing on the deck was touching the metal of the car. Could this be the problem?

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1985 RX-7 GS
1987 Jetta GLI

 

the niose you were hearing was comming from the alternater and is caused by a bad ground. however this doesn't normaly happen inless you have high power amps etc. I have no idea why the car won't start. you proably crossed the power and ign wires up.

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Scott M,
1300cc.com

 

Thanks for the advice, it was the ground. It works fine now but there is still the slightest slightest engine noise, but I could care less (for now). As for amps, I have a 150W RMS JBL Decade, not exactly high power.

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1985 RX-7 GS
1987 Jetta GLI