I had this radio static happen to me with the rear defrost on. I also have my rear window tinted. When my rear window was fogged up and I put the defrost on one of the grids wasn't working, so I got a flashlight and looked at that one grid, I found a cut the size of a c*nt hair. I went to autozone bought a defrost repair kit (about $15). I had to cut a slither of the tint from the broken grid and I painted it with the repair kit. Now everything works and no more static! The hardest part was cutting the tint but with a steady hand and a new blade its no problem, and its such a small piece your cutting you won't even notice it.
