I looked at all my wiring diagrams, including the green book. Its not there.
I have since learned that its on the same circuit with the courtesy lamps, but it doesnt show anywhere.
The symptoms where continuous "key in ignition" warning chime(while seating in the car, with the door closed) and no power to the radio. Thanks to the mighty brick board I was directed to the number five fuse, which was blown. Eventually I made it to the funky wire(bare) that powers the engine compartment light, and is part of the courtesy light circuit. The wire was bare and grounding out, blowing number 5 fuse. Problem solved.
I would still like to know where the chime is, and how to disable if one desired.

LS