I have a 2007 gmc Sierra extended capickup up, I want to add a little extra base to the system but want to keep the stock stereo in place. I have read about wiring the system with an adaptor from the speaker. Just looking for some suggestions on the best way to go about this and even what hardware I should look into!!
a line out convertor is all that you would need for that setup to get hooked up to a factory head unit. all you would need after that is an amp kit, amp, and subwoofer. good luck!
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