Anyone have specs or a link to the specs for the system in my '99? Its the single cd & tape player. I'm hoping to just pop in some new speakers for an upgrade, but don't know if the head unit has enough ummpphh to drive anything good. Can I get reasonable results without an amp? From what I've listened to so far I'm leaning towards Boston Acoustics, 6x8 in back and possibly a component system up front with the tweeters mounted up where the Mach tweeters would be. I'll either mount them in the filler plate I have, or buy the Mach enclosures and put them in there.