BTAWS6

Hey guys, I'm new to the forum but have been using this site to fix up a 2000 firebird for the past couple of years and finally decided to make an account on the site tonight lol. I recently purchased a WS6 about a week ago from a dealership and have no prior history of this car and the first thing I did was swap out the stereo. While I was swapping the stereo and running the amp wires I came across (what looks like to me) a voltage meter shoved underneath the console with a bunch of wires coming out of it. The wires disappear under the carpet near the airbag control module headed towards the back of the car. I have no Idea what it could be and there are no markings on anything for me to look up and its bugging me, just wanted to see if anyone has any idea what it could be without me having to tear into it too far. I also found a connector in the console that looks like it plugs into a connector attached to the wires. I've attached a couple of pics to see if anyone can Identify it, Any help would be greatly appreciated.

blunder

Is it reading the voltage on the o2s?

shady tree

looks like an air to fuel ratio meter. Mine looks exactly like that.