How do I add a pin switch to the factory alarm?

[Frankwhoa]

How do I add a pin switch to the factory alarm wiring for a tonneau cover?

 

[WY-Dave]

Usually the underhood pin is a single wire that when the hood is raised it will connect the wire to ground. Easy way is to tap into that wire and run it to the back to the new switch.

 

[crash68]

Usually the underhood pin is a single wire that when the hood is raised it will connect the wire to ground. Easy way is to tap into that wire and run it to the back to the new switch.

I think @Frankwhoa wants the factory vehicle alarm to sound if someone lifts his tonneau. Unfortunately the hood switch on these trucks do not set the alarm off, it is just to disable the remote start.
I was thinking the same thing when looking into adding a shock sensor. I had the hood open but the alarm didn't sound till I opened a door.

Someone posted a while back about adding this:
Megatronix UPS Add-On Shock Sensor To Factory OEM Car Alarm Security Systems https://www.amazon.com/dp/B007VHG3BA/
It gets wired to the door switch, a pink wire if I remember correctly on the driver's door.

 

[Frankwhoa]

Thanks guys.

Can you also hook the pin switch up under the hood to also set off the alarm or would you need a separate one under the hood and another one under the tonneau?

 

[Coolbikr4684]

I know this an older thread but was anyone ever able to figure out how to add a switch to the factory alarm? TIA