I have a 60 gig
ipod classic and video works for me, but it didn't right away. I wish I had a better tutorial, but I got frustrated because I could only hear audio. So I started pressing all over the screen and when I touched the left side of the screen -- don't remember where, the video appeared.
I am on a business trip, but I will try to do a better job of trying to convey what I did when I get back. I will also take photos of the Metra installed, too.