Sounds like an animal if there's a bunch of small wire pieces laying around in there. You can typically tell the difference between a "cut" in the wire versus a melted wire...
Anyways, if any of your stuff did melt it wouldn't be ddm's fault, it would be the installers fault for putting wires too close to hot engine parts. I've never had a problem with ddm, and I've had my kit for over 2 years now.