Aerial amplifier (What uses it?)

[tsango]

Hi there

I am referring to BMW part number 84.10 6 945 425-02

I am about to fit an ANDRIVE headunit into my car and am wondering if I can make use of this aerial amplifier for the TV reception.

My car already has DVB TV but does it use this aerial amplifier, and can I run a lead from the new head unit into the input of this amp? Or does the radio module use this amp?

I have searched the internet for some info on the way it's all set up but cannot figure anything out.

I would also like to run a wire to tap into the current GPS aerial. Any thoughts on that idea?? (Rather than have another GPS receiver sat on the dash).

Any help appreciated.