So I am considering getting XM radio. I have a Honda Ridgeline RTX which on the face plate says that it is XM Ready......which is a joke because I would have to get the antenna, XM tuner and wire harness to get it so I can listen to XM Radio (for around $300 in parts and $225 in labor if I don't do it myself). I know you can buy aftermarket that have built it FM tuners that don't need to be wired other then an antenna, or you can get them to plug into a RCA jack or something like that, which the Ridgline doesn't have but I imagine you could wire one somewhere. So XM radio guru's........How's the best most economical way to get me listening to XM/Sirius radio. Any suggestions on what to get if I do go aftermarket? Thanks in advance.