I've had a Alpine CDA-9886 CD player and JL subwoofer and amp, hooked up to the stock MACH460 system. It sounded good but I wanted more! Well I've removed all the MACH460 stuff and replaced it with ALPINE components. I used a MRP-F250 amp running the front and rear speakers. Those being a set of  SPR-13S 5-1/4" Components for the front and SPS-507 5x7" Coaxials for the rear. A MRP-M450 amp is powering a JL Audio 10W3v2-D2 subwoofer. This system sounds so much better that the MACH460 system!!! I need a new box for the subwoofer, something that blends with the trunk. That box is from my old JL Audio sub. Here are a few pics of my progress: