An amplified antenna for the 159?

[As the day goes]

Hi all,

In the process of installing a new head unit and will try out one of those usb DAB+ dongles.  Yes I know I can stream DAB off the phone, but I wont always be a a position to do so.

I wont be installing one of those ugly windscreen mounted antenna and looking at other options; like splitting the signal from the existing aerial knowing that the signal will need to be boosted by way of an amplifier. 


I have read that the 159 with Blue&Me has an amplified (phantom power?) antenna. From this diagram it appears that there could be a amplifier (4) for the antenna in the  If anyone has ever found the amplifier could you let me know where it was actually located?