18 months old.

The trace is bonded to the inside surface. Not embedded.

I'd never heard that the bonded on style had problems with moisture. I'll have to try damp ragging it to see if it becomes worse.

There were some people with SSR's where during dealer prep, the trace was severed by people using razors to remove stickers from the inside window. Not mine. The trace is intact and yields consistent continuity/resistance throuout.

I'll look into the connections, cleaning and lube.

PS Means absolutly nothing but the vehicle, originally, was slated to have an antenna made from a see thru metallic film on one of the inside surfaces of the safety glass.