Bob F wrote:
Jeff Wisnia wrote:
My son just bought a used car which has an antenna mount for a
satellite radio stuck on the outside of the rear window.

It's a lump about 1-1/2" square with a short male threaded antenna
starter piece sticking out of it.

He's no intention of getting a satellite radio and asked me how to
safely remove that piece.

There's a matching lump on the inside of the glass which I assume is
inductively or capacitively coupled to the outside piece, but he's not
much concerned with that one and if it happens to be stuck over one of
the defroster grid lines he's better off not messing wwith it.

I presume the outside piece he wants to remove is adhesively attached
to the glass and wondered if the folks here here can recommend a safe
way of removing it without risking damage to the rear window.

I would probably just try tapping on it sidewise. A light impact will probably
pop it loose. Lay a screwdriver on the window with the tip on the lump and the
handle on the glass. Tap the end of the handle towards the lump.

I'd wedge a single edge razor blade under one corner then tap that in.