Dealer did not know what this is.

I recently purchased a formerly owned 09 from a local dealer. This was in the truck at time of purchase. They do not know what it is of what it does. It has 3 wires leading back to a harness under the dash.
Does any know what it is or what it does?

Thanks

 

A microphone for handsfree bluetooth?

 

bluetooth mic

 

Thank you for the response. This raises a new question. As far as I can tell, I do not have Bluetooth in this truck. The steering wheel does not have controls for the Bluetooth and my cell phone can not find one. Does the present of the mike mean that a Bluetooth is installed and if so, how do I activate it?

 

Maybe the guy had an aftermarket Bluetooth capable system and when he got rid of the truck installed the stock back in?

 

Thats the Toyota aftermarket alarm system by Karr, just pulled it out of my truck

 

I have something simular to that in my O3 the I recently purchased. It is mounted on the bottom lip of the dash and has a button on the back side and a red light on the front. The individual I purchased my truck from never mentioned it. I push the button and the horn honks and the little red light blinks. Done it only once. Afraid to mess with it and not be able to get my truck started. The guy I purchased the truck from lives in another state and I no longer have his contact info.

 

+1 at least the part of the alarm