I have bought some grey leather seats which came with heater seat I want to retro fit these but my BCM Is not the correct one part number 8ko 907 063 k does not have the pins in the middle multi plug position I have found one with the same number but with the last letters AJ and M and P .Can any help me and let me know if any one of these is the one i need or is it one with a different last letter thank Steve
61 plate a4 b8