How do I remove the silver discs behind the radio knobs to get the Hamburg radio out?

I don't want to break it so I have not forced it. They have to little holes or indentations which makes me think they may spin off with some sort of tool.

Thanks,

Ron

PS the radio is a 1972 Hamburg (not in a porsche, 72 Bavaria, sorry, but will be for sale to a porsche owner once I get it out!)

Just use a pair of 90 degree snap ring pliers and spin it off. If it's not too tight, you might be able to use thin needle nose pliers.

Got it off, thanks.

Ron