RF module?

99 3.8L, where exactly is the RF module I've read about for the rear defogger? I removed the pass rear trim on the C-pillar only to find 2 wires, one with a fuseable link, but nothing that looks like a "module" of anykind?

is this for the rear glass antenna?

No, I was trying to fix my rear defogger. My switch on the dash works but nothing out back. Found another post on here where it was a "RF module" that is supposed to be behind the trim on the pass side C-pillar.