I just recently bought a 2005 Grand Caravan and love it. The radio that it has is the RBK radio with the CD player and also has Sirius satellite radio which I do subscribe to. I noticed when going through the channels, it goes from 98 to 105. It skips over a couple channels. Is there a way to reset that or get those channels back on somehow? It skips over Howard Stern and a couple of the comedy channels. Thanks for any help.