Water In 7 Pin Plug Behind Rear Bumper

This afternoon I installed my Diode Dynamics Backup Lights. The instal is super easy and I've attached a photo just b/c its likely someone will ask.



That being said, what was alarming was the amount of water that was inside in the connector behind the rear bumper. I got a face full of water and you can see the water droplets on the bottom of the plug.



Toyota also has zero dielectric grease in these plugs. Have any of y'all see this with your trucks? I hope mine is an anomaly, but I think I'll have to treat this like I did my Fords and unplug everything under the truck and add dielectric grease to prevent corrosion.