Hi all. Just purchased a used 3.0 L X5. It has the radio with cassete player and CD changer on the trunk. I'd like to install the wide screen unit. I have already found many on EBay.

Can you tell me if the wires harness is already installed or I have also to buy/install the wires?

I understand that I will also need the TV tuner to be installed. Am I correct?

Thanks