I'm working on installing a sub in my car; I've got power to the amp and output signal to the sub, but I haven't run the wires from the head unit to the amp yet. I have a mono amp, but it has stereo inputs, and my Clarion head unit has stereo sub outputs. Since it's a mono amp, to reduce the number of wires I have to fuck with, can I splice together the stereo sub outputs into a single pair of wires before I run it back to the trunk? Or will that cause problems? While I'm at it, if the answer is "no you can't splice them together", what does the mono amp do to combine the stereo signals besides just connecting wires together inside the box?