18 sidewinder mystery wire

[Pairodice]

Installing a new battery in a 18 sidewinder mtx 162. When i pulled the old battery bracket off there was a small black wire not connected hidden under the harness going forward. There is a red wire about the same size that was connected to the + side of the battery. Does anyone know what this wire is used for? It's part of the factory harness, not an accessory. I looked at a 15 viper and it has the same wire and it's connected??

 

[Jakeshupe79]

Installing a new battery in a 18 sidewinder mtx 162. When i pulled the old battery bracket off there was a small black wire not connected hidden under the harness going forward. There is a red wire about the same size that was connected to the + side of the battery. Does anyone know what this wire is used for? It's part of the factory harness, not an accessory. I looked at a 15 viper and it has the same wire and it's connected??

My 17 sidewinder has the small ground (black wire) hooked up to the negative on the battery.

 

[ClutchMaster]

Installing a new battery in a 18 sidewinder mtx 162. When i pulled the old battery bracket off there was a small black wire not connected hidden under the harness going forward. There is a red wire about the same size that was connected to the + side of the battery. Does anyone know what this wire is used for? It's part of the factory harness, not an accessory. I looked at a 15 viper and it has the same wire and it's connected??

It’s probably for the accessory fuse leads. Follow it up, it should go to a fuse holder with dead end wires.