cos, snags its a combined unit with radio channels; has push buttons 1 - 0 with CD/AM/FM on a Jag X. Without my CDs I cant drive, if I cant drive I'll have to stay here & drive Abers mad.....I know that's not ideal :(
I highly doubt that pressing one button is going to break the unit.
But then again, as you've elected to not share a single bit of information about what radio we are talking about here I'm not sure how you expect people to help.
Ah yes, a car that's been in production for about 45 years and has had at least 10 different generations, now if only they'd fitted the same "regular" radio for all those 45 years we'd be getting somewhere.