I've heard of a lot of people on here and other forums who have done clear corners and resealed them with silicone sealant and no condesation has occured. Also, if you splice your neon wiring into the dome light, as long as you have it wired to the wires before they make it to the switch, they will come on when the doors are open, but if you wire it directly to the switch and leave the switch off, they won't come on at all.