What is this?

[jdeer0412]

Does anyone know if this piece is stock? I've been trying to figure out what this piece is for. There is only a white wire and yellow wire leading into it. It looks to be a piece for a car alarm but I looked on the internet and can't find a Guardian Car alarm company.

 

[J_C]

I can't see your images, but from what I could find a company named Code Systems Ltd. made Guardian car alarms that some dealers used, like model CPL100. Their website appears to no longer be online but was
http://techservices.codesystems.com/ and there is this:
https://www.tacomaworld.com/attachments/cpl-100-install-manual-pdf.66400/

 

[jdeer0412]

It looks as if it may be from old alarm system that was installed. I bought the truck used. I appreciate your response