PIAA 520 Series - Manual (Page 4)

HARNESS
INSTALLATION
When connecting the wires on the harness, follow the
wiring diagram and the sequence below.
Before connecting any wires disconnect the negative (-) battery terminal.
Note: When running the wires through the engine compartment sure to
keep them securely away from moving parts such as the fan and the throttle
cable and away from hot parts such as the exhaust manifold.
Find a power source to connect the switch power wire to. For legal operation
of fog lights the power source must be one that is only powered (+) when the
low beam of the headlamps is on. For legal operation of driving lights, the power
source must be one that is only powered when the high beam of the headlamps
is on. To make this connection use the supplied connector or any connector
that is suitable for this application. Do not connect lights to turn signals or to
lights that flash with an automotive alarm.
Run switch wires into driver's compartment. If wires pass through the fire wall
a rubber grommet must be used. Connect switch to switch wires and mount
switch in desired location.
Connect relay ground to chassey or battery negative (-).
For proper lamp operation it is recommended that you connect the positive (+)
and negative (-) power supply wires directly to the corresponding battery
terminals. Do not take power directly from the alternator.
Connect harness to lamps.
When the wiring is complete, test the system for operation. Do this by turning
on the system. If the system works, securely fasten the relay boxes and
fuse holders or tie them out of the way with wire ties. If the system does
not come on, please contact your PIAA dealer for assistance.
Aim lamps according to Light Aiming instructions on page 5.
Tighten all fasteners.
3.