Way above my pay grade, but given that the left parcel shelf speaker and left rear door speakers are a matched unit (woofer, bass and treble?), similarly on the right, I wouldn't be changing any of it without expert car audio advice.

If you were going with a good set, then you could swap the lot and put a seperate sub amp, or even a completely seperate amp in, but there's a pile of wiring to sort.

Going to replace them all starting with the rear ones. I have just bought an amp also to run the rear speakers, so I just need to figure out the best why to run it

I'd splice the rear door amp into the connections that feed from the shelf speakers, saves on cabling and pulling as much trim off.

do the rear doors have those type of speakers with their own amps too?

Did you miss my earlier post? :Confused:

sorry I did read it just getting confused

Notorious kindly and conveniently posted a complete wiring diagram here, you can check that to confirm: http://forum.a8parts.co.uk/showpost....8&postcount=22

got that. thank you very much+++

Hope it's useful, I saved a copy on my PC for reference. :cool:
I had a careful look at it when trying to sort out the pathetic sound from the rear and decided the amps were indeed built in to the rear shelf speakers (only) and took the covers off (and even took one out) to verify the wiring.