okay i burnt out a bulb on my 960 and after i fight my way out of wal-mart on a saturday get it
when you take it off there is a black plastic clippy ring around the bulb assembly and wiring harness meet.
now common sense didnt kick in for me so just as a public service announcement.
1. put bulb in where you took the old one from.
2. put black bosch clippy (new engineering term) around it.
3. after you put the wiring harness back on turn them on and turn high beams on.

if you dont have the wiring just right for the german engineer tolerances.
1. it'll look really dim
2. high beams it turns off and you get your "ligh out" idiot light.

so just for future reference