Pulled it out but wouldn't know where to start! Other thing I have noticed is that it seems to be running alot longer when the ignition is turned off.

Got My car back tonight and on the way home from the dealers... DAMN i could smell burning. Electrical burning. After a few hours of thinking what the hell it could be i found the smell coming from the park brake area. On a closer inspection i have worked out that it is the fridge. I now have a microwave.
The can and bottle of milkshake was cooked. so turned the switch off.
So back on the bloody phone tomorrow. They will think im taking the bloody when i call up
The whole area outside the fridge was v v hot. I thought at first it could be the cd unit getting hot but its defo coming from the microwave. 

I have accepted its a cubby hole for cleaning products, spare change, dvd remote...... a 12v cooler from halfords in the boot makes more sence and can carry a lot more.

The Burning smell that i was getting is defo the fridge,
Car Rebooked In for the 11th for paintwork and now a new fridge.