elandon1201 said:I know the Sirrius units ar MUCH larger then the xm's
NOT. I have a STARMATE Sirius streamer. Its about the size of a pack of cigarettes. It comes with a mount for windshield or as I discovered will mount to a microphone clip like the one for a CB radio. :-laf I got this in addition to the head unit which came in the truck. 1/2 price for second subscription. I like the unit in the truck, steering wheel controls, etc. But the portable unit is good to take in the house, wife's car, even to listen to thru a portable Boom box. Also the Starmate has the song title, artists name which is not displayed on the MUCH more expensive factory head unit.