Reached a deal on a 14 JK Sport with what appears to be the base x2 stereo. Nothing but radio, CS, and aux (with an aux jack that probably is toast). Two buttons on steering wheel that are for what? I want to upgrade the unit but I don't need much. If I can get Apple CarPlay only that would be awesome. Does the fact that my oem unit is so basic limit me? if I can't upgrade to CarPlay could I just pick up an upgraded Chrysler unit that has bluetooth and Sirius and just swap it in easily and cheaply? I'd think they are available cheap. Thanks.