Sat nav help

I bought a sat screen off eBay last October for my Astra. However, after a few problems with the seller taking my money and not being able to contact him I've only just received it today! I've already resprayed my centre console so I don't really need it anymore or know what to do with it. I would like to put it in the car as I like the idea of having an integrated sat nav system, even though I go to the same places all the time. I don't know where to start with it so looking for some help. Ive got a few pictures on the link below of the front and back of the screen (it's the blue console). I don't know if I could link up a DVD player or a sat nav system. It's not a touch screen though.

If it turns out to be too much hassle I'll put it back on eBay and focus back on the zed again,

http://photobucket.com/astrapic