There was a TSB on the radio in the 2004 Grand for no sound from the radio/cd. I had the dealer do it on mine a long time ago when it was still under warrenty.
I just checked the NTSHA web site looking for it and could not find it. It involved removing the radio and putting a piece of electrical tape over a vent area on the radio housing.
Previous Jeeps: 84 CJ7 (A True Jeep), 2000 XJ (163,000 Miles/Totaled (Pictures of wrecked Jeep in gallery)), 2004 WJ (parting out die to major electrical issues)
If you don't have time to do it right the first time, how do you have time to do it over.
Lifetime member #13
2011 Tango/Mango JKU