Help, I have lost my decode for my blaupunkt car radio.serial number( BP8475A2869431)other number 7648475010,if anyone can help I would be greatfull ,thanks Billy.

A number of people are selling programs online that claim to be able to decode it for you.
The legitimacy of such deals cannot really be tested.

However I would recommend going to a garage and getting them to resupply you with the code, It will cost you £30 or so though.

Here is someone claiming he will be able to do it for £9:
Radio Decoding
Again, I can't comment on the legitimacy of this service.

In fact, using Google, you will find many people offering such services:

blaupunkt radio decode - Google Search

Hi, Your code is either 4638 or 0638.

NEED A CODE FOR BLAUPUNKT 300 GM030M23040759 7 640 852 520

CODE FOR BLAUPUNKT CAR 300 GM0300X5215756 7 649 852 320