CD changer cuts off with timer counting

I have a 02 ML320 and my CD changer stops playing but the time still goes on in the mcs. if i turn the truck off, then start back up the changer plays again. all i hear is static when the music cuts off.
This started to happen as it the weather got colder.
I looked this up in the forums but no luck.

any tips???

PS - i have no more warranty