I have bought a Sony head unit for my Astra and attempted the fitting of the unit today. This is the second one I've done so I felt confident in this being a simple task.
However, after connecting all the cables the unit wouldn't switch on. Checked all the cables to discover that whilst there was a permanent 12V to the unit the ignition switched supply remained dead at all ignition positions.
I have checked all of the fuses and they are all fine. I check the head unit in another Astra of similar age and it worked fine. So I figure that the switched feed is causing the problem.
Does anyone have any suggestions?
Also somehow I created a further problem at some point, the central locking now doesn't work. Either by key, by fob or by the button on the dash. I have re-checked the central locking fuse and it is ok.
Any help would be much appreciated.