Hi, about the TVSS, best advise ko is to disconnect the module na lang but still keep it under the dash so all the components are still in the car. You can even keep the original remotes in an envelope with the owner's manual and other papers.

Then have the installer put in the new alarm. You will reuse some of the parts like the same door motors and link up to almost the same set of wires when you put in the new system. Just make sure you have a good installer.

I don't think any vehicle security system is designed to thwart side mirror theft po.