I already have the sportster sirius radio, but they is offering a free radio with the car kit. The only thing that is needed to get this free is to pay the $6.99 a month for 6 months at the time of purchase and they will give me this for free..... It's not big or bulky so i think i may get it.. It does have a built in FM -modulator.. anyone have or seen this type of Sirius radio? if so how is it?Radio?