I am swapping out the interior of my car. upon doing this I found this loose wire that leads behind the sub boxes to this type of sensor. the wire is on both sides of the car leading to both the boxes. The sensors says Resonance on it, and I am not able to find anything about it on the web. my question is are these original and if they are how would I go about reconnecting them. Thanks

 

Here are some pictures.

 

Resonance sensor? Never heard of it. I'm assuming it's remains from some old car alarm.

Also, GM wouldn't hold it in place with duct tape

 

Yeah, that's left over from an alarm.

 

Thanks for the help. when I seen the one held to the wall with tape I was sceptical on what it was, but it was ran through all the factory tubing under the carpet, and seemed to be a factory part. Thanks again