hey guys...here's my ?s regarding running fronts and rears in parallel off 2 of the 4 channels:

1) crossover - you'd only have one xover point for all four speakers. I know for fact that aftermarket 6" rounds in the doors will carry way more midbass then 6x9s can ever hope to. If you had 4 identical speakers, then this isn't as much of an issue...NOT the case here

2) gain - again, you'd have one gain setting for all four speakers. Rear "fill" is just that....fill. You don't want the same power going to the rears as you do the fronts....ESPECIALLY if you have aftermarket fronts and stock rears.

personally, I'd just disconnect the rears and go with a three speaker setup, but if Nutz wants to keep his rear fill from the 6x9s, I'm going with OnyxXterra on this one and say he should just leave them on "stock" power

PS: Nutz, when you put in the new front drivers, do NOT forget to disconnect that crappy pillar tweeter.