C-100 VU meters Radio

Hello. Probably a dumb question but are the Analog VU Meyers in upper left corner supposed to work with the radio? Mine only work with aux and I’m assuming cassette (mine don’t work). When I’m radio the VU’s only use the battery and tuning not left and right VU for music.
Also my radio is only working in mono. Doubt that has anti do with it but thought I would mention just in case. I see others talking about a fix for this .

They only move on radio if you're recording

The lack of stereo is common, there is a 5K trim pot on the tuner board, VR002, that needs adjustment, cleaning, or replacement.