Install new Pioneer head unit no radio reception

[NedAshley]

Hi,

I have recently had to replace the broken PCM unit in my 2007 Cayenne, I chose an AVH-X8800BT Pioneer head unit. I have used the following connectors:

https://www.dynamicsounds.co.uk/connects2-ctspo001-porsche-cayenne-2002-stalk-steering-wheel-control-adaptor.html

https://www.dynamicsounds.co.uk/connects2-ct27aa25-universal-twin-fakra-to-din-aerial-antenna-adaptor.html

https://www.dynamicsounds.co.uk/connects2-ctmultilead-2-universal-steering-wheel-stalk-adaptor-stereo-patch-lead.html?search=CTMULTILEAD.2

 

Everything works pretty much as expected, apart from the lack of reception. I have hooked up the blue aerial adapter wire to the blue / white wire coming out of the head unit, but it doesn't seem to make a difference at all. The blue white wire has roughly 12v on it when it is unplugged, and I can get a voltage back at the other end of the fakra aerial wires where they plug into the amplifier in the rear spoiler.

Does anyone have any clues as to why it doesn't seem to be working? At the rear spoiler it looks like I have two amps, 1 on each side, the right hand amp has EXT, black and curry coloured connectors, the left side just has EXT.

Has anyone got any hints as to how I can diagnose this? Just to confirm that the reception was working fine on the old Porsche unit before it died.

Thanks
Ned

[Mixpower]

The Yellow Fakra is for GPS, de Black Fakra is the Antenna for radio!

Also that Twin Fakra adapter is not correct for the Cayenne at all!
You need a adapter like this http://www.dabonwheels.co.uk/Fakra_aerial_adaptor_M_Fakra__M_DIN.asp

Edited August 16, 2016 by Mixpower

[NedAshley]

Hi, 

Thank for replying mixpower, I investigated further as to what is going on and it seems that the aerial connection broke loose. 

In the rear spoiler area it seems that the aerial is moulded into the plastic and the black wire from the amplifier had broken at the point it goes into the plastic. 

I have loosely connected them back together and the reception seems to come back better.

Thanks

Ned