Anyone in the Washington DC metro area know an audio store competent enough to install a Phoenix Gold Ti 900.7 amp in an 04 TL?

 

I am also trying to install my amp and subs (audiobahn!) into an 05' tl. Im new to the forum. anyway- Im one of those diy kinda guys, so my question is can I unhook the speaker wires going into the existing sub, and put my line out converter on the end of them and whala? or if not, where do i hook up the l.o.c. for rca cables? any help would be greatly appreciated. THANKS ALOT!

 

Beats the bejeezus out of me...I am just for a reputable, competent installer. I really don't know jack about installing a 5.1 amp. Sorry