On the TIS CD there are details of the independant rear heating on the TDI models (presumably on scandinavian versions) where the heater can be programmed to come on for a max of 30 minutes using a time clock on the central roof console. This allows the car to be warmed before you get in on cold mornings. Has anybody ever come across this actually fitted, if so how well does it work? Also has anybody retro fitted it to a UK spec galaxy?