Alarming pieces on car to prevent removal

Hello everyone,      I just had my side lights stolen off my truck while it was parked on the street. They just pulled them out and unplugged them. I have a two-way alarm system, but there wasn't enough shock to set it off. Does anyone have experience/ thoughts/ suggestions on alarming individual pieces on cars that are not protected by the shock sensor? I'm thinking about using a clothes pin tripwire setup and connecting it to the hood plunger switch, but I wanted to reach out to the internet first to find a better idea. Thanks for your ideas in advance.

If your "side lights" require screws, use tamper-resistant screws. If it only pops off, then I would suggest fabbing a way to bolting the lights down internally. I would hate to rely on a sensor of some sort, which may cause false-triggers.

There are no screws, just compression tabs. I am afraid to secure them from the inside, because the thieves wouldn't see that and would try to force them, scratching my paint and possibly braking them. False-triggers would be a problem in that area, but I believe this problem could be engineered out.

Micro switches or fab a hood switch behind. You'll need a plastic box for the switch otherwise it will corrode in weeks.

Dail in a motion sensor that would trigger the alarm when someone gets close to the light(s).I drink current, eat ohms, and bleed voltage

A magnetic switch may work as wellI drink current, eat ohms, and bleed voltage

DEI Closed Loop Sensor, run a small loop thru it, loop breaks... Boom

I researched the proximity motion sensor, I dont think that would function well because of people passing in parking lots and on the street. It would be alarming every 5 minutes. I'm looking into the micro switch and the magnetic switch options. maybe I can find two shock sensors and glue them to the back of the light assembly. Whichever is cheaper will be the winner, something functional and prevents this from happening again. Thanks for the input.

A trunk monkey would work well, I can't seem to find a reliable one though. They keep escaping or succumb to the climate inside the trunk.

tapxe wrote: A trunk monkey would work well, I can't seem to find a reliable one though. They keep escaping or succumb to the climate inside the trunk.

I've tried this method. One day my ex-gf went to get something from the trunk. Monkey jumped out and ate her face. This happened, of course, in Florida. So your state/continent might be more monkey friendly.