I have the PAC AAI-CHY (I'm pretty sure I'll doublecheck if you want it..) which does take the place of the SAT or VES. I used it in my XK to listen to Slacker from my phone. It worked great. XK is gone, so if you want it let me know and I'll dig through my parts bin in the shed and verify the model and we can work out a deal.. I had a 2007 XK with REC-NAV so it should be the same.