No Sound from Radio on 2004 BMW X3

The radio is on, volume knob is adjusted. Fuses have been checked, re-checked and replaced. Fuse in AMP has been replaced, not blown, but what the heck. I am at my wits end with this thing!!!!

by in Highland, MI on November 27, 2012
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2 answers 5 comments
ANSWER by , December 22, 2015
Had exact problem for over two years. Tried new head unit, amp, no luck. BMW wants to put a new system in for $2500... Power to head unit, power to amp, no sound... Any suggestions would be greatly appreciated.
ANSWER by , November 27, 2012
YOU SAY THE FUSE IN THE AMP IS GOOD? iS IT GETTING POWER TO IT? WHAT OTHER SYMPTOMS BEFORE SPEAKERS WENT OUT?
COMMENT by , November 27, 2012
Yes the fuse is good. No corrosion on the connectors. My daughter said she put a cd in and it started to play then the sound started to flutter in and out, then the sound was gone.
COMMENT by , November 27, 2012
if your CD player lights up but not play...you need a new one.
COMMENT by , November 28, 2012
My question still wasn't answered--if the fuse is good IS THE AMP GETTING POWER AND INPUT FROM AUDIO UNIT & HOW ARE YOU TESTING IT???????oR JUST BRING IT TO A STERO SHOP AND BE DONE WITH IT.
COMMENT by , November 29, 2012
The fuse to the amp is good. I honestly have no idea if it is good. The music was working fine...then started to cut out...then went dead. The dash unit seems to operate normally. The stations work, the cd will take and spin. Its just that there is no sound out of the system in any mode. All I can do in terms of testing is verify the fuses.
COMMENT by , November 30, 2012
Can you get your hands on a voltmeter to check for battery voltage at amp? Is there any kind of LED on it indicating that it's on?