'76 175 GP - What Is The Wire Coming Out of Engine Case Next To Magneto Wire?

Greetings - the subject heading pretty much says it all. Just took possession of a sorely neglected 1976 175 GP. Bike has been sitting, untouched, for 35 years.

Trying to identify the purpose of a second wire coming out of the engine case next to the magneto wire. Can't find a reference to the second wire in the parts manual or the service manual.

The wire in question is currently not connected to anything. Its just dangling in front of the engine case. Would like to know its purpose and whether it will affect my attempt to start the bike.

Am hoping this esteemed group can help me out.

First correct answer wins a .jpg of the mouse nest I found in the airbox. Binx

Likely a wire coming from the lighting coil that was included in your Motoplat ignition. Will not impact engine starting or running.
I'll assume the ignition coil wire is running up to your red Motoplat coil...hopefully with a kill button wire spliced into it.

Since the 175 was mostly used in enduros due to the lack of a 175 class otherwise, I would agree that it is the lead for the lights as long as the bike runs without it being connected to anything

Its power for the Fridge connection, do i win the prize ?