What does this connect to?

[e30Prestige]

I was trying to diagnose my lack of brake lights and decided to undo the kick panel and check the brake switch. I found this wire just hanging there not connected to anything. Anyone have any ideas?

[Panici]

I think it's for the door chime / OBC chime.

Do you have a chime sound with key in the ignition and door open?

[CorvallisBMW]

It's not the brake light connector, that's for sure.

[jalopi]

+1 on the door chime

[e30Prestige]

I think it's for the door chime / OBC chime.

Do you have a chime sound with key in the ignition and door open?

^No door chime so that makes sense. I think I'll leave that unplugged!

It's not the brake light connector, that's for sure.

^Yeah I checked the switch and it was connected.

[Code808]

C1 connector for chime module. Red/Green wire - power, Brn/Grn wire - is the ground for the seat belt and key in ignition when dirver door open chime. The other connector to the chime module is C2 which is primarily from the on-board computer if so equiped.