I used to have two kickers in my truck, I sold them but the wiring (8 guage I believe) is still running under my carpet and leading into the trunk area.... is it possible to connect the infinity basslink or any subwoofer with a BUILT IN AMP to my current wiring or do I have to wire them to my door speakers? It looks like I can just connect all my wiring to the built in amp and it should work just fine but Id like to get some answers or input before going out and purchasing one. Thanks