Hi, Im retro fitting cruise control to my a3, ive fitted the stalk and coded the steering wheel ecu but im stuck at trying to code the engine module. i understand that i need to change the code in engine 01 "coding 11" but its not highlighted in vcds. do i need to enter a security access pin into it before i can change the code? any guides ive read dont mention any of this.. any body got any ideas??