Just checked the CDR 2005 VDO HU again and cannot see an aux socket anywhere. Is this an internal wiring job as the handbook refers me to Vauxhall fitters? I do have the stubby aerial, roof mounted. Could the devices either side of the interior light fitting possibly be alarm sensors and not microphones?
Oops, sorry guys, I've clouded the waters somewhat. When I put my specs on and actually looked at the unit it is a CDR 2005! So, same question as previously but hopefully I've given sufficient correct information now for the boffins amongst you. APOLOGIES all round!
The interior light unit on my 02 2.2 CD version appears to have microphones fitted either side of the interior light unit. If this is the case then are there any other clues that I can look for to see if hands-free phone use is available in the vehicle? I have the CCCR2007 head unit fitted with no steering wheel controls allocated to mobile phone operation.