Been looking around under the dash now that I have temporarily removed the instrument cluster. So what is this box? Looking at the attached bracket, I assume this should have been secured somewhere under the dash. Then there is this wire plug connected to nothing. Any idea why this is there? I'm pretty sure this is the power plug for the original stereo receiver, now long gone. I would like to use this to power a GPS. Any idea where to find a mating male plug? I'd rather not splice in here if I don't have to.