I'm looking for suggestions on what to do about a rust hole, i cut it out with a grinder and tried filling it with bondo, but the bondo keeps cracking and the rust keeps coming through. I now have a welder and would like to weld in a metal, it's the typical Honda rust, so i need the contour of the flare (95 Civic). I was thinking about having a junkyard cut me out something, but i'm sure if it's not rusted through, it's about to be. Thanks in advance for any help.