05 MCSc Rear Fog Light Harness

[4Bar2]

My 05 MCSc has the black blanking cover where the RR fog Light would be (above the exhaust). There is a wire harness plug behind this cover. I know that some manufacturers will tuck unused wires when the options do not call for their use. My questions are this:

1 - Is the plug functional?

2 - What would be driving it's power? (i.e. brake light, fog lights, reverse lights)

I want to put a clear lens assembly in this spot so that when I change the tail lights I will still have reverse lights.

Any help is greatly appreciated! THANKS!

[bad venge]

The rear fog is likely no powered as you don't have the switch in your cluster

you can get the reverse light for around $30 and wire it to the backup light harness and rub the wire down