I have a couple more questions.
I want to keep this inexpensive, so I'll probably use the existing factory amp (behind glovebox) to power 4 NEW speakers in each of the doors.
1) Is there any reason to bypass the existing 4 channel amp, as suggested above? After-market amps would be better, but could HU power be better? It doesn't seem to make sense. Is the existing amp just crap that I should eliminate as part of the project? (I don't know any of the specs on the factory amp.)
2) If I get a new HU and use the existing factory amp to power 4 new door speakers, what is the best way to wire a free air sub (and amp) on the back deck? Will I be tapping into speaker wire and dealing with bypass/crossovers, or is RCA an option? If I pick a HU with 2 sets of RCA outs, can I use one RCA for the 4 channel amp and the other for the subwoofer amp in the back? The ultimate question is whether I need to buy a HU with 2 sets of RCA outs, or if one will do.
- Thanks
