You need to have a look behind the amp rack. You are looking for two 18 pin MQS connectors, one blue; one purple. You are also looking for a coax for the GPS antenna.

You do not need to buy a main harness... your current wiring has about 90% of what you need...

The TV-only wiring is very similar to navigation wiring. The navigation computer and TV module use the same blue plug. So, you just need to add the burgundy plug that has the wheel speed and reverse signal. That is very easy.

Next, follow the instructions in this post to make a short adapter to add a 2nd blue plug so that you can have both the nav computer and TV module connected.
BMW TV Video Module Wiring Harness

Finally, you only need to add the GPS antenna to make the system complete.

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SOLD
2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input

Or you can buy this lead from the dealers.

BMW Part number: 61 12 6919758

It should be plug and play.

If you dont have pre-install then you will also need a gps antenna (get one from ebay for around $15)

P.S welcome to the forums, and lucky you having the Digital tuner.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.

Thank you both Big Bob and Brian BM, for your help.

Brian I have purchased the part number you gave me is there any I stallation instructions I can get to install the part.

Cheers
Compas

Thank you muchly ccfi1, sorry it was you that gave me the part number is there any instructions for installing the part.

Cheers

Compas

I did this recently - there are matching connections for 3 of the plugs, all near the cd changer. The larger one was tucked down low, the other two on the side of the bracket. Then the white and blue quadlocks go into the nav drive, and any SMB antenna into the nav drive also. Easy!

Thank for all your help with this I did find the plugs they are black and white and do live near the CD charger they sit along side each other along with a black plug that just hangs out. I plugged the black and white plugs at the end of the harness into the sockets then plug the blue and marone into the back of the nav computer. I was given a gps antenae with the unit and used that to see if the unit worked which it did. I would not of been able to achieve this without all the assistance from here to which I am thankful for.
I would like to connect the nav DVD to the cars antenna. I am assuming it would already be there.
Can anyone assist with this? Do I need to purchase an antenae for the car and has anyone installed the antenae into a x5?
Cheers
Compas

If its not there tucked away, then you may need to buy one, any SMB antenna will do, $10 should get you a brand new one.

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Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.

Can anyone tell me wich wire I use to connect the Bluetooth mic into. I have white plug and a green/ jade plug hanging out in the overhead light console, and neither go them have enough length to reach the mic. I have RHD BMW X5.