I'm very close to purchasing speakers and maybe an amp for my truck (2002 GMC Envoy, non-bose from the factory), and I've narrowed it down to two product line choices- Pioneer and Alpine. I'd like some input as to which is better, and why. The prices are mostly comparable, with the Alpine costing just slightly more.... (note that these aren't exactly the highest end products, but I'm on a tight budget for this system since I don't need something loud, just better SQ). Here's my lineup: Pioneer: Front doors - 6.5" TS-C1653 2-Way Components Rear doors - 6.5" TS-A1681S 4-Way Coaxials Amp - GM-3000T 200W 2-Ch. OR GM-4000F 300W 4-Ch. (Which is better?) Sub - ??? (Not sure what I'm doing here yet) Alpine: (Type S) Front doors - 6.5" SPS-171A Components Rear doors - 6.5" SPS-170A 2-Way Coaxials Amp - ??? (Not sure what I'm doing here yet) Sub - 12" SWS-1242D (Just a single 12", eventually) Any input/advice? Either way, I'm eventually going to add the Pioneer AVIC-D1/D2 as my headunit. For now though, the stock non-bose HU is staying put. Thanks! Oh and if anyone can give me an idea of how many sq. ft. of dynamat/brownbread/raamat I will need to do all four doors and door panels, that would be great also. I won't be messing with the floor or roof until I swap out my seats for leather later on this year or early next year.... and I'll ask again for a size estimate at that time.