saw this portable xm player at best buy for 100 bucks and seemed real neat. but didnt justify paying an extra $10/mnth for the service. will xm allow me to use 2 devices with one service plan? or will i have to be old school and get one of those cassette decks to plug into my TL

 

No, XM requires you to have a subscription for each device. It would qualify for the family plan / mulitple radio plan that allows like 4 additional devices for $6.99 per month. The first device would be at the normal rate.