Thanks for all the serious replies and thanks for all the funny replies, I got some good laughs. I finally got a hold of the previous owner and it is indeed an aftermarket anti theft system. Thanks for all the help, loving my 5.0!
Yes guys of course I pushed the button, but it wasn’t plugged in. I followed the wire and it went somewhere behind the radio. Still no idea what it could be
I recently purchased an S550 5.0 and found this little button on the driver side on the side of the center console near where your knee sits, does anyone have any idea what it could be?