Right... another question

Has anyone wired up an empeg to a Eunos Roadster with the Mazda Sensory Surround Sound System in it? My car has got a pair of speakers in each of the headrests, as well as a speaker and a tweeter in the doors.

What's the best way to wire that little lot up?
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Mk2a RioCar 120Gb - now sold to the owner of my old car
Rio Karma - now on ebay...