Sorry, I no onger have the part numbers, but your BMW parts desk will be able to bring up on screen. I *think* that the pair came to around £45??
It's plug and play. When you connect the TV module to the Nav drive and then turn on the ignition, you will have the TV option on your nav menu. make sure you get a wide screen TV module, not the older screen ratio. - The smaller style screws up the view of your menu, not just the TV screen size..
I.e. watch a 'narrow' screen on the TV, then swithc to the menu and the screen remains narrow. - No such problem if you get the correct TV module.
Enjoy!