I have bypassed my bose amp, and have an extended speaker wire harness running to my deck, It would be very easy to reverse that and run that harness from the head unit to an after market amp's high level inputs. I could also run two more sets of RCAs from my head unit to the rear, and use the low level inputs.
I am thinking RCA's will probably be the better option, how ever I already have so much crap in my dash as far as RCA's, GMOS adaptor, blue tooth mike, USB, Video out and in, and the thought of trying to run two more sets of RCA cables in there is not a pleasant one.
Would it be worth the trouble to shoot for RCA's?
I am getting my amp before the speakers, would it make sense to hook it up to the stock bose speakers ( the amp is 2 ohm stable ) or just wait till I get my components.