I've had my TCH about a week now and since it didn't come with XM (and I didn't want to pay $500 from dealer) I thought I would see if my Roady XT would work. Perviously I had it in my Altima and it worked great using the cassette adaptor.

In the TCH (equipped with NAV) I get a high pitched squeal on the audio system while using the Roady XT. I'm using a steroe cable to connect the Roady to the vehicle using the aux audio jack located just below the nav unit (the jack in the back of the storage compartment).

Anyone else had this experience or found a workaround for it?

Thanks,

John