I'm just wondering if this has happen to anyone?
If I hit a pothole or medium bump the sound system blinks for like 1-2secs.
I took the radio/CD out to check the connections and seems fine. I shook both at the same time pretending is a pothole or even worst and nothing happened. It will happen either on the Radio/CD/Ipod.

I'm just wondering where else can I check or if this has happen to your E53 and what did you do to resolve the issue?

2002 E53.