Yeah. I think I will remove the glove-box and have a nosey. Will see if I can get time this weekend.

The car doesn't have a polarised or heated windscreen and the sat-nav and Bluetooth phone prep all works OK.

I was wondering if it was a device for automatic passage through toll booths or car parks or something like that.

If the original GPS and DAB aerials and associated connectors/units are in the back of the car I'd be very surprised if someone had routed that all the way down the front instead of just putting it in the boot.

Unlikely, it's very much a GPS aerial and seems to be sited for good satellite reception.
Boot is no good for GPS, this could just be an easy replacement for a faulty GPS aerial.

Take a look at the sat nav in the boot and see if the original blue coax aerial cable is still connected.

Mine is a 2010 MY with 3G MMI so it has nothing in the boot other than the stereo amplifier. The Sat Nav is the HDD based version so I'm guessing that's behind the dash somewhere in the front, so maybe it is just a straightforward aerial replacement due to some clumsy gimp damaging the originals when they tore out the rear windscreen aeons ago (which subsequently caused it to leak for 3 years!!) ... :mad:

On another note... Where is the DAB Aerial?

Ah... ignore all I said as was thinking it was 2g. I think you're spot on correct with the above.

I have a very similar unit on mine (attached to the windscreen, outside bottom) Its an aftermarket GPS arial for the Road Pilot, camera detector, that was installed in my car when I purchased it

The toll booth TAG gizmos are usually stuck inside the front screen alongside the internal rear view mirror. They are normally only 2"x1"x .75" and hide themselves quite well. We have M6 Toll ones on all our work cars, I even have one on our personal car for convenience. Saves a lot of time when the road is busy, unless you have some sunburnt family who do not understand the system. Once had five car loads queuing up at the TAG barrier without any TAGs and only cash.