Originally Posted by
GraphiteGhost
The downloadable Service Manual is your friend for the wiring harness diagrams. It involves some reading on your part (also to mention there are some but not many errors in the manual), you'll have a basis for finding the "Always ON" wiring in the dash which is easily testable with a voltmeter with the almost 100% accurate color coding (again cross-referenced) in the Service Manual. Good luck!
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Many thanks for your prompt response. I'll locate the manual and get it downloaded as necessary. Apologies for duplicating forum posts (where the question might have already been asked 100 times before).