Few days ago bought a new car. Vauxhall astra. Gut the radio is in safe mode and I don't have the pin. I checked the net and I found that I can buy the code but it's too expensive for so old radio. Serial is GM040023295257 Thank you!
as far as i'm aware you can get the code from a vauxhall main dealer for a price, not sure how much these days !. the main problem that you may have, is that the radio may totally locked out due to the incorrect codes put in too many times by previous owners, if that is the case then i'm afraid its dead. you may however find some kind person has written the code on the radio chassis itself !
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Try fixfault.com to fix in-car audio.