what radio is it as there may be another button to press.
Google code entry for your radio.
Don't enter the wrong code too many times as this may lock the radio until reset by manufacturer
I think the ins co. owns it.
Ask them what they are doing with it and if you can keep it.
If you keep it you could break it and sell spares through ebay, or weigh it in at a scrap yard (got £70 for a clio last year)