C5 X7 Rear Speakers not working

[Strop]

Hi all.

The rear speakers (parcel shelf) and the subwoofer in the boot have stopped working on my 2008 C5.

I have checked the fuses in glovebox area and appears ok.

I have done a quick pull apart of the boot lining but have not been able to find anything wrong. Before I go pulling anything else apart looking for a potential problem does anyone know if there is a plug on the wiring loom that might have come off that could be causing the problem? Speakers in the rear doors working so I am thinking boot area. Radio reception also appears to have worsened also. Bigger antenna makes no difference.

Thanks

Laurie