It's some lame dealer installed device for whatever reason. I'd remove it and restore it to factory condition.
I spent the time to remove the one from my van. There were even a few wires run into the driver's door! I didn't want any crappy electronics under the dash of our van. (it costs the dealer like $35 for one of those and they try to sell them for like $500 to unsuspecting customers)Karr alarm system installed by many dealers. Usually they install a bypass when it is sold. I found the same thing in my Accord. Removing it can be somewhat involved and it's not causing an issue so far so I haven't bothered.