Thanks TerminatorX5, yes these my actual pics, i just took them moments ago.
I haven't searched nor done the "surface charge removal"... but i think from what you've said, it makes complete sense.
Oh and the vehicle does have "Bluetooth"... although i wasn't aware of the actual Bluetooth radio until you pointed it out.

It seems i have a big void under the CD Changer, you can put your hand down in their, and there is nothing there, which is different to some other photos i see of the E53 X5 CD and Nav area.
There is also a strange silver box mounted on an odd 45 degree angle just below floor height (i take it this is the Bluetooth you were referring too)
When the Girlfriend gets back, i will dismantle the whole area and check for corrosion in all plugs.

Might even disconnect the battery completely for 20minutes and reconnect if that helps reset anything (i did read that in some posts here).

I will search for battery replacements now, the battery seems fine, car starts no worries, although, that small indicator on the top of the OME battery still shows "Black"... where i'd expect it to be "Green". I see in another post TerminatorX5 you've quoted that even though the vehicle starts, the battery may still be at fault.

EDIT: I found this http://www.xoutpost.com/articles/x5/...ernatives.html

And many other very scary posts of "Jump Starting".... i'm never doing that!
But as yet, have found nothing on "surface charge removal"

We have also just discovered the A/C now comes on automatically when the car is started each time, even though AUTO is not selected.