First, check the voltage at the battery with the ignition in the OFF position. The voltmeter should read no less
than 12V. If your vehicles electrical system is not up to these specifications, we recommend having it checked
by an auto electrician before any further installation. Once the vehicle is checked, make certain the correct
cable size is used. We recommend using as large a gauge cable as possible, use the Power Cable Selection
Chart to calculate the correct power wire size for your application.
BATT+ (Power)
This amplifier should be wired directly to the vehicle battery using the appropriate size cable. Start at the
vehicle battery and run the power cable through to the amplifier. Avoid running the power cable over engine
components and near heater cores. The use of an inline fuse or circuit breaker is a must; this will prevent the
risk of a potential fire caused by a short in your power cable. Connect the fuse holder or circuit breaker as close
to the battery positive (+) terminal as possible (no farther then 12” from the battery). This fuse or circuit breaker
should be no greater then the sum of the fuses found on the chassis of your amplifier (also see specifications
chart). You may now connect the cable to the battery, but remember to leave the fuse out or circuit breaker
“off” until all other cable connections are made.
GND (Ground)
When grounding your amplifier, locate a metal area close to the amplifier that is good source of ground (prefer-
ably the floor pan or chassis). Once again, investigate the area you wish to use for electrical wires, vacuum
lines, and brake or fuel lines. Use either a wire brush or sandpaper to eliminate unwanted paint for better
contact of the ground. Secure the ground cable to the body using a bolt, star washer and nut. Spread silicon
over the screw and bare metal to prevent rust and possible water leaks.
Now it’s time to connect the power and ground cables to the amplifier. Cut both cables to length. Strip off 1/2
–inch (12mm) of the insulation so that the bare wire fits all the way in the terminal block on the side panel of
the amplifier, seating it firmly so no bare wire is exposed. Use a Philips (cross) type screwdriver to loosen the
BATT+ and the GND connections on the amplifier. Insert the ground first, and then the +12V and please make
sure that you place them into the correctly marked terminals. Then tighten the screws down securely. For high
current applications grounding directly to the battery may be the best choice.