we just purchased a new toyota prius last week, and we want to get sirius working on the onboard stereo which has a satellite radio option,the problem is that for some reason toyota is a partner with xm (why i don't know) and i am afraid the indash stereo has connections only for a xm module,i have heard that sirius or some one makes a switch kit to convert GM and other non-sirius ready radios to fit a sirius module. does any body know anything about these switch kits and where can you get one ?