Try a search for more information on wiring the unit to switch off.
You will need a specific adaptor to fit between the vehicle's wiring for the remotes and the head unit. As an example, look here:-
03-09-2011, 01:25 PM
(This post was last modified: 03-09-2011, 01:44 PM by BlueBlingo.)
If you want the radio to turn on/off with ignition use a feed wire from the Positive wire to the Cigarette lighter for the switching supply to your head unit.Fit an in line fuse in this wire.
2003 Citroën Berlingo 2.0HDi Multispace Desire