I know it has been talked about but has anyone solved the poor radio reception on the Camry rear window amp ant. Everything works but it does not get certain channels and if in garage nothing . the amp works does anyone have an idea as far as a aftermarket antr fix or should I replace with external ant.

 

Might be the antenna connection at the rear. The link below shows the location in one of the posts.

Car Audio issues, FM Static, HELP - Automotive | DSLReports Forums

Make sure all wire connections are making good contact as opposed to the plug just being connected.

Is the the radio amp you check or antenna amp?

Sometimes the wire connection to the antenna on the glass is bad.