I just purchased a 2011 RT. I don't plan on using the radio. Does anyone know if it's possible to remove the Radio Multi-Contoller wheel/knob? Also, the stock seat is terrible(of course) and I'm wondering if anyone has had success with having an upholsterer change out the foam but keep the same seat shape. The bike also came with a Sargent seat but it's wide and I'm trying to stick to the narrower shape(ie short legs).Thank you