Thanks a lot to all you pros for your in depth answers. They have been very helpful. Just to let you know, however, There is a bracket to hold the amp (or MPX) in place under the console cover in front of the shifter, I believe because mine has factory air (not enough room over the glovebox?). I'm 90% sure that it was mounted there originally. I'm not so sure about the original location of the speakers though. I see no evidence of kick panel speakers (but again this may be related to the A/C, I'm not sure). And why the radio has a single wire running up to the dash speaker is beyond me. I did see that the rear speakers were grounded to the chassis as was probably done originally. I will not repeat that installation. Any other advice is welcome. I want to preserve the original radio, but don't know if wiring my new amp and speakers to that radio system is advisable or even feasible.