looking at the bottom pic. the stock vx cam plugs into the middle on, Named CCD i think.

When i was looking for headunits over here i could only find some japanese cheapy looking units with that plug. in my price range. instead i mounted a another headunit down in the 1 din cubby hole.

Crotch i found some odd looking plug thing in the back of the vx on the left hand side. where the jack is, the camera plugs into it, It also has 1 aux type input.

Not sure what it does :S.

I can get a pic for you if you want