If you find any 9000 in a scrapyard, it will have the wiring waiting for the seats to plug-in - they all came fully wired, and taking the whole loom could give you a head-start.
While you are there, you might want to grab the seat-heater temp. selector switches out of the dash - the seats get pretty hot on yer bot if you have them on full all the time, and the switches give you 3 choices - the mildest one just feels like you've embarrassed yourself.
Where are you?
I have a 9000 with electric seats in and a haynes manual you can stare at if you are anywhere near Chester of a weekend.
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