Well I didn't even know what XM was, I had to Google it...it's the Satellite subscription radio by Sirius in the USA/Canada. Over here in the UK we have free DAB (digitial audio broadcasting) which I guess is the nearest equivalent except it's broadcastr from terrestriak masts, not satellites. How much does a subscription cost and is it worth it as compared to picking up internet radio over your cellphone and sending it to the car via Bluetooth? Just curious. And another thing, do radio receivers in the US still only show odd numbered frequencies? 15 years ago I lived in NJ and remember WDHA 105.5, WNEW 102.7, etc. and it was pointless buying a car radio in the US for use in the UK because it wouldn't pick up Capital 95.8, Absolute 105.8