Club board dry

What's the difference between Sirius sportsters sp-r2r and the sp-tk2? - sirius stratus boombox

I's SP-R2R but think contract for another car. Will SP-TK2 Tightening mein Auto Wine Quay W / SP-R2R? Favor non interpret recent models like stratus just purchased my car is pure crap so'm Stick w / antique models seems much stronger and have more functions. Thank you de ayuda!