xm/sirius ready head units....

yeah im looking to buy a sirius ready kenwood or alpine cd player and i was wondering if there was anything else i needed to get satilite radio?

thanks,

you need to get a satilite kit,i think its like a terk1000 and the cable to hook it to your head unit,just because its sat ready does not mean its all you need.
you also want to see which one is supported,it will say either xm or sirus,but if it supports both it will say sat ready