Paul_S wrote:From my previous Nissan experience - with the 350Z to a large extent, and the 370Z to a lesser one, the BCU only has so much capacity. Everything nowadays is controlled by the brain. Hit a switch on the dash and it's not directly connected to the thing you want to turn on - it's a signal to the BCM to turn the device on.Therefore, the loom might exist to the heated mirrors, but the software that links the missing switch to the mirrors might not.There are lots of things that 'should' work but a lot of things that probably wont between models from different countries.Thats true, but on some marque's that makes it easier to add things like when I had cruise fitted to my Skoda just bought the switch and the dealer plugged it in to modify systembut yes the BSI/BCM does control everything these days Deks2012-01-18 22:04:04