Just got my 06 IS350...sweet ride...Its got Nava nd Mark Levinson and I wanna get Sirius and iPod control from the touchscreen...any way to do both easily? I have seen some aftermarket solutions for either but not BOTH....and is teh Lexus Sirius kit any different than the aftermarket solutions? I see one that even allows you to use the sharkblade antenna. How easy is it to intsall??? I did a complete system in my last car a Porsche Carrera so i am pretty good with mobile electronics, so maybe I'll tackle the job. I'd ideally want to do the ipod control and wire it to the glovebox so I can keep an iPod in there.