I just got a D2 from my cousin and I want to replace my factory navi in my '06 Trailblazer SS that already has after market speakers/subs and amps. So what im asking basically is.... if my speakers and subs are already connected to the stock HU with a LOC do i just need to install the D2 normally and swap the RCA inputs from the LOC to the outputs on the D2?
if anyone could help me out it would be greatly appreciated.