posted on 01/07/2008 04:01 in RV Tech Tips
An often overlooked entry point for water is through the hole where clearance and tail light wires exit the exterior. A thin bead of silicone sealant around the top edge of clearance lights will minimize the possibility of moisture entering the walls.
--From Woodall’s RV Owners Handbook, Copyright 2005. Used with permission.
Available at Camping World.