My SSR has a antenna that printed on the inside of the windshield. It's the same tech as you see in rear window de-frosting elements. There is a powered amp between this and the stock radio.

All summer long I've had great reception. This was after having the radio warranted for a different issue. Reception had been unacceptablly good. Which is to say poor but not poor enough to get the dealer to move on it. Anyway the problem I asked to have repaired didn't get fixed, but reception is now excellent.

Last week we had what for this area an unusual thunderstorm with rain. Happens every 5-10 years or so. The next day, crystal clear, I had poor reception that improved over the next few days.

Having written that, It sounds like something got damp. My question is "What would the wisdom of the Empeg gestalt find to be at fault? I guess what I really mean is, What's likely from most to least? Me naming what I can think of in no particular order, Antenna, amp, coax to radio, radio, chassies(body), dash harnesses.
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Glenn