Hey, just after a bit of advice about what the next step should be for me. I started out upgrading - working from the front, back. But just need some advice about amps/subs, as in what I need etc At the moment, Car is a 306 D Turbo (phase 1) Headunit: Panasonic CQ-RDP383N (mp3/cdr/rw/4x50W/pre-outs etc) Fronts: JBL GTO 6506C components Rear: Standard parcel shelf speakers. Wanting to fit a sub and obviously an amp to power it, ideally. I'd like some rear speakers - possibly some basic coaxials - just so rear passengers aren't just getting excess bass. What sort of amp and sub do I need to be looking at? Also, will the headunit be sufficient to power the components up front with the amp doing the rear? Any other suggestions? Oh, and I listen to a wide range of music - but most of the time its rock based.