Will try this
I had my drl's turned off and the reprogramming apparently gave my car RDS capabilities (didn't have it before). after the reprogramming my radio becomes silent every now and then for approximately 10 seconds. I took it to the dealer and they couldn't figure it out and they simply reprogrammed the radio. the problem is still occurring. After reading this post - I will try to turn on my RDS and hope that it solves the problem. It has for you (at least for the last month). Thanks in advance if this solves the silence. I am tired of the dealer holding on to my car for days at a time.
330i/MB/Grey w/ Burl int./ZSP/Prem/Nav/sunshades/tint/ACS roof spoiler/blacklines