It may be a V8 or PPS thing. I actually find it annoying. Unless there is someone sitting in the front passenger seat, that panel will stay lit with that indicator. I'm sure it was something the VW attorneys had them put in so that if some doofus put a small child in the front seat, they would know that no airbag will deploy. Or conversely, if someone put a cradle weighing more than 20 lbs in the front passenger seat, the airbag WOULD deploy and that indicator would NOT be lit.
I was joking above. I would much rather have a handy aux port there than this nutty warning indicator.