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tech@retromanufacturing.com
Power and Ground Connections
Constant 12 volt (+) Battery Wire
The constant 12 volt (+) battery wire (not included) should be wired directly to
the vehicle’s positive (+) battery terminal using 8 to 4 gauge primary wire de-
pending on run length. Start at the vehicle’s battery, and run the cable back
to the amplifier. Avoid running the wire over engine components and heater
cores. The use of an in-line fuse (not included) is required at the positive (+)
battery terminal. Connect the fuse holder as close to the battery as possible
(within 6-8 inches of the positive (+) battery terminal). This fuse should be 60
amps. Leave the fuse out until the final connections have been made.
Ground (-) Black Wire
Locate a metal area as close to the amplifier as possible (preferably the floor
pan or vehicle chassis). The ground wire should be made using the same
gauge wire as the power connection and be a short as possible. Use a wire
brush or sandpaper to eliminate any paint for a better ground connection.
Secure the ground wire to the vehicle using a bolt, star washer and nut (not
included). See the diagram at the bottom of page 7 for a close-up of a correct
ground connection.
Remote Wire
Connect the remote wire to your radios remote turn-on lead.
60-amp fuse
(not included)
Connect to remote
Turn-on Lead +12 Volt
(16-18 gauge)
Connect to ground
Negative Ground (8-4 gauge)
Connect ground to chassis or
frame close to the amp.
Connect to battery
CONSTANT +12 Volt (8-4 gauge)
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