airbag light on after amp install

[RuffianXL]

ok i have a 01 audi a4 i recently put a amp in the car with the stock system as soon as i turned the car on to test the install the airbag light came on i have had it scanned with a vag and the code it gives me is d/s door ignitor, but here is the wierd part my buddy has a passat with is pretty much the same car and his did the same thing , after i had it scanned the and reset the light as soon as i turned the stereo on the a/b light came back what might be causing this to happen and how do i install the amp so it will not cause a issue with the a/b light

[thedeal7235]

hey, after i installed all my (4) phoenix gold amps in my 02 a4, i had the same thing, basically, onmine, the rear seat belt was tangled enough that it thru this same code, so double check ur seat belt, mine wasnt even that bad, but, after i untangled it , and made sure the connection was good(back center seat) it went out on its own!!!!