Attached is my setup with BMW OEM AUX and GNET Video module. This is more for a CarPC setup than an IPOD setup. It would work the same way. I am currently looking to replace my GNET video module with something with a bit more "meat". I have a BMW OEM video TV module in the E46. The picture looks ok with a standard video input into the module. Typically for a source of video (IPOD or DVD movies) you can get a decent picture. With a computer though its a bit different if you want to be able to get some decent looking menu items on the stock NAV screen.

See my thread here for what I am doing:

http://www.xoutpost.com/bsws-mobile-e...carpc-bmw.html

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E83 - Aero PKG Mods installed: Homelink mirror. CIS-IBUS video module, AUX, Rr Dr Release, stock wheels, Remote start, CarPC (Atom) & mud flaps - NAV - MKIV - NA Map DVD - 2011
E46 - 18.5 wheels/tires (summer), 17 stock (winter), Homelink, NAV software upgrade, BMW video module, Radio to V53, AUX, USB IBUS interface,BMW alarm install, CarPC(Epia), remote starter, tank battery & angel eyes. NAV - MKIII - NA Map CD - High Version 2008.1