Precision Power DCX 500.1 - Manual (Page 9)

Note: The cables running from the battery to the rear of the car
should be installed on the side of the car opposite to the antenna.
When using 16 gauge wire or larger, run the speaker wires from the
amplifier location through the vehicle to the speakers. Observe the
same precautions for routing these wires that you followed for running
the power and remote turn on wires. Cut off excess and, using wire
strippers, strip 1/4-inch of insulation. Locate the speaker/remote turn-
on
PowerLock TM connector. Loosen the outer screws on the underside
of the connector. Insert the speaker leads into the end. Check to be
sure you've maintained proper polarity before securing each wire, and
plug the
PowerLock TM into the amplifier.
8