I dont have a car in front of me to look at or play with, but apparently this Blaupunkt head unit does have video inputs that have been found, correct?

http://g35driver.com/forums/showthread.php?t=177080

Yes, it would appear so. Blaupunkt is not forthcoming with information as to how they can be used.

I think the last guy to post in the other thread is doing this same setup...so, we may know soon enough.