Mystery Wire Loom found in '65 Barracuda

I have the regular wire looms (under hood, under dash, lights front and rear) but this one is separate and I don't remember if the previous owner left this in the vehicle or if it belongs to the vehicle. This is a Formula S automatic equipped with factory A/C, P/S, P/B and AM radio. Looking at the other wire looms, it would appear I don't need this at all.

The overall length is around 64" and the wire colors are blue and white (unknown purpose), and orange and black for the mini-lamp. Thank you for any pertinent input.

mystery wire loom 2.JPG

mystery wire loom 1.JPG