I just discovered yesterdaythat my radio is dead. I have a 2005 X5 3.0. When I push the power button it does absolutely nothing. Confusing thing is that the NAV is working perfectly. Any ideas??

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DaveC
2005 BMW X5 3.0 (current)
2008 Mercedes ML 350 (current)
2005 BMW X3 3.0
2002 BMW X5 3.0
1999 BMW 323i