Question about 1991 Pontiac Sunbird

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Having trouble wiring in a stereo for a 1991 pontiac sunbird le. There seem to be 2 wiring harness that seem stock. The first is for the radio, second for the tape deck, and there is also a third that does not belong there. i have attempted to connected an aftermarket deck to both of the harnesses but no cigar. I now have it wired to the fuse box's additional bat. feed terminal & ignition terminal. the deck lights up but pulsates since i hooked up the rear speakers on their own new lines that i ran. Also one thing i dont get is that with the stock stereo disconnected why are the stock speakers still making sound?

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  • Anonymous Mar 25, 2014

    All wiring is hooked up properly, fuses are fine and no power to stock unit or aftermarket unit while using adapter harness. What is wrong?

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Go to www.installer.com

Posted on Jan 21, 2009

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