So, I managed to install my new mechless head unit and cup holder (just waiting for a blanking plate to complete the effect) and I have a curious problem.
The head unit works broadly as expected, even down to continuing to play when the ignition is switched off but stopping when the key is removed
![Cool 8)](http://images.omegaowners.com/forum/smf2000/Smileys/oofstd/cool.gif)
. BUT, when I take the key out for any period of time (from 2secs to overnight), all the settings on the radio disappear, including clock, station presets, equaliser presets, the whole lot. - Very annoying.
What I think must be happening is that the HU pin for permanent live must be matched off to a switched live on the car side of the connector. Currently, one of the three parts of the block connector on the car side is left blank as I haven't yet fitted the steering wheel control unit I purchased. But I can't see that making any difference?
So, does anyone have a wiring diagram for the vauxhall radio plug so I can splice in a proper permanent live and keep my radio settings?
Thanks in advance