Those are coaxial cables, I would assume for XM radio and GPS antennas. No idea what the empty socket is for.I found these 2 unplugged cables in my "new" 2015 Volt. Any idea what they are and where they go?
Also What computer is under the dash , to the left of the brake pedal? it looks like someone has done some work to it in the past and i have no idea what its for.
Thanks!