OK, I'm playing a little here...
Is this guy (on You Tube) a hack or full of BS. Take away the bias of a traitor\Benidict Arnold factor..LOL I'm sure some here have seen his video's.
Makes me wish I installed my own, I mean, he makes it look easy, even tell's ya what equipment to use........Just kidding.
Based on info given here, he's a HACK, that takes too many shortcut's. I can only hope that people who follow his advice gives you guy's more buisness for repair work.