You know what does make the airbag light come on??? Changing the whole column for a tilt column with a nice wheel and unplugging the blue box behind the radio.
Thanks. I only wanted to verify because I sold an A9L which was running my coupe fine and the guy who bought it says it also runs his car fine, but he claims it is causing his airbag light to flash. I told him I didn't think that was possible but he claims it is.