If it does loose the radio code for some strange reason you can go to a VW dealer with the VIN number and proof of ownership and they will give your...
It has been an endemic issue since the PQ34 platform came out in 1998 and has carried on through PQ35 and 46 into MQB and is down to the side engine...
I have the same problem with my Golf as I don't use it that much now. I put the battery on charge in Winter just to top it up. I really need to get a...