Here is the reason why you may have loss of function of rear electrics including boot lock mechanism, double locking, boot warning light, random alarm going off, etc, etc..
You will need some new wiring, small connectors and electrical tape and some wire clippers
Click on thumbnail for larger picture
|Location of offending loom||Location of offending clip||Tear in loom|
broken wires (purple/blue?)
and plain black
|Dodgy temporary connectors||Dodgy repair job|
*All mechanical suggestions and tips are purely for information only. I accept no responsibility for any damage to vehicles or persons as a result of any of my information. Consult a MG-Rover manual before attempting any repairs. Some repairs should be carried out by professionals only.