96 seville wood dash has diagonal crack starting at center vent. seen it on almost every car in junkyard. even took off a few good pieces and always broke the plastic mounting tabs. i have determined the crack is in the clear poly coating and not the wood. i am pretty sure sanding this crack and trying to somehow recoat the poly is next to impossible. anyone here try a repair? i know a guy who replaced the piece with a NEW dash insert and that cracked too.