Crutchfield helped me out and i feel so dumb lol. The interface box was fine, but the Kicker amp i was using had the amp 2 (rear speaker) gain set at 0 so no sound was coming out. It's all good now! Thanks everyone.
Hi Everyone,
I have a 2004 Tahoe with the UQ3 Audio system (No Bose, No Onstar). I installed a new radio, and only have sound from the 4 speakers in the front, no sound coming from the second row. The rear speakers do have sound when the factory radio is plugged in. I've researched, this for...
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