Possible Lead To Navigation Hack

[iammikey]

I was reviewing the repair manual cd for my ES330 tonight and found a flowchart which had a camera check mode on the navigation system diagnosis display. I then found a chart with physical addresses of camera, tv tuner, xm (xm satellite?), and a whole bunch of other neat things (see pg 05-1258 on the repair manual).

Has anyone tried to add a camera, tv tuner, XM radio, or dvd player to the ES330's navigation system? I'll look for schematics on this cd if someone can help me interpret it. This repair manual has got me thinking that there's a lot of neat things one can do to the navigation system.