83 Voyager wiring problems

Sounds like a bad radio unit to me. I have a suzuki samurai truck that it rains inside more than it does outside, and the first thing to go is the sound to the speakers, even tho the unit itself goes on.

Did you ever get this resolved? It's only been eleven years.

You've probably discovered by now the 'Cruise' is not Cruise control, it's got to do with leaning out the fuel injection to give you better gas mileage.