99 Tahoe, No sound from Rear Door Speakers

Installed a Sony deck in a 99 Tahoe 4 door LT. Rear ceiling speakers and front door speakers worked (before I blew both rears!!) but the rear door speakers don't sound off. I noticed what looks like an amp under my drivers
seat. Didn't notice any extra wires when making the connections for the deck. Where is the connection, what colour are the wires?
Thanks
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the rear door speakers ARE amplified... did you use an aftermarket wiring harness adaptor? if so, make sure you energize the blue wire on that with your amplifier turn-on lead from the headunit. light up that one wire, and your rear door speakers will work.
dan

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nadiel69, Could you be more specific? I'm a computer geek, but I know nothing about car wiring, etc.
CharlieJ
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