I have a 2000 without the mach system. it has the two headunits - one cd the other is the radio/tape and i wanted to put in aftermarket pioneer headunit. i have a wiring harness and i have been able to get power to the new headunit but cant get speakers connected, the speaker harness doesn't match anything in the car's wiring we managed to find what looks to be an amp under the cd player and it looks to be the only thing that could be hooked up to the speakers. http://www.cardomain.com/item/SCOFD05B does that look like what i should be looking for? is there anyway/should i be bypassing the amp using the preamp on the new headunit to the speakers? getting pretty damn fed up. any ideas?