Lately my 460 will shut off randomly. By shut off I mean completely; no clock. It's as if I shut the car off. After about 3 to 5 seconds it comes back on and resumes playing. At first it started with pressing the brakes. Today though it happened when I put my turn signal on. Any ideas?
You might want to check the battery terminals to ensure they are tight and without corrosion. A bad connection there can cause some really strange problems.
If that's not an issue take it to the dealer. You should still be under warranty.
I'll double check it. Just seems wierd that it only bothers the radio. If that doesn't help though it's going in to the dealer for this and the 3650 TSB and A/C controls.