Bavaria 30c 2007 stray cable found

[tjmobile]

Hi Everyone,
Can anyone help me find out where this stray cable should go near the alternator please?
I've just replaced the sail drive gaiter after 8 years and found it loose. It looks like it goes somewhere because the female spade terminal is a little corroded where it would push on.
BTW if anyone wants any layman's advice on the gaiter replacement, let me know.
Trevor.