Is This A Factory Harness?

Redoing some previous wiring on the truck today, pulled a bit too hard apparently on the Batt/Acc/Grnd harness . . . but can't for the life of me figure out where it plugs back into. Being white it has me wondering is it a factory harness/plug? The inline fuses also have me suspicious.

I spent an entire hour upside down under the dash looking for the plug this bugger plugs back into with no luck. Thoughts? Am I looking for a factory plug?

Edit - This is not the head-unit side of the harness, this was the connector leading somewhere under the dash to a power source.

Remote start?

It has it, but all the ports on the module are used and they're a slightly different connector. So I'm still on the hunt. I've spent enough time looking for this thing that it would have taken to tap back into the ignition . Plus I can't ever remember if the head unit ran through the oem fuse box.

Whoever wired this remote start system in sure need a swift kick in the nuts. What a mess.