Got the dreaded no volume control this morning. Did an internet search and came up with removing the 7.5a fuse for the"Tel". This didn't help. Decided to remove the following 15a Radio, 7.5a Tel and 30a Amp waited 30 minutes and plug all the fuse back in. Started the car and now my volume control on the steering wheel and radio are working again. Hope this helps anyone else who might run into this problem.