I’m on the west coast so not close! But I do have a suggestion, if you cannot find a loaner:
It sounds like your nav still works. In the set up menu, there is an option to route the nav audio thru the com, and out the com output. Select that option, and listen for the nav ID using the com audio. If you hear it, you know the problem is ‘up stream’, the com radio or com antenna or coax. If you don’t hear it, the problem is ‘down’ stream, com audio or wiring to panel/headphones.
PS Try pulling the radio, spray all the pins with contact cleaner, reinsert while still wet to get some on the rack connections. Recently mine had become intermittent to boot up, but spraying the pins (or maybe just the mechanical rubbing of removal/reinsertion) has apparently fixed it.
Last edited by BobTurner : 03-13-2023 at 02:26 PM.