Big thanks for the answers!!
At last somebody could tell me something else than "it is impossible - Audi service".
Yes, the new dashboard is too expensive so I decided to sell the radio. I'm not happy with that 'cose you know - this one is great product.
I'll try to sell it on eBay and some polish auctions . But there is only one problem. I brought it from USA - this is US version but I don't think there is some big difference, anyway - I didn't pay big cash 'cose it was only the radio without any code carte etc. and it is in good condition not superb . It was installed in Chevy Monza and the owner had to do something with it 'cose it didn't want to start (there is a function in symphony 2 that when the radio change the car it will no start ). He said it isn't "hot stuff" - it was not stolen. But now before I'll try it with eBay I want to be sure that is ok and i called to the Audi dealer, service. I asked them if they could check the radio serial numbers - they said - "no, we cant" another bullshit?? Help. Where can I check it ?? Maybe you could do it for me if yes I'll send the numbers .
So now i'm looking for the 1 din Audi radio .