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4. ELECTRICAL WIRING
IMPORTANT! Disconnect the positive power terminal ("+12V") or remove the main
fuse near the car battery before you start any wiring work!
The power supply of the car audio system must be disconnected until the entire wiring
installation is completed.
Use rubber grommets when running cables through any metal or sharp plastic panels, to
prevent accidental shorting or shearing. Make sure the cables do not interfere with normal
operation of the vehicle. Especially the music signal cables (RCA interconnects) should be
kept far away from any potential sources of electrical interference i.e. electronic vehicle
management systems (engine computers, relays etc.) fuel pumps, wiring harnesses etc.
4.1 CONNECTION OF POWER CABLES
Run the positive power cable ("+12 V") directly from the positive terminal of the car battery
to the amp-module. Make sure the power cable makes good contact to the battery; i.e. use
an appropriate battery clamp that accepts big gauge power cables! For protection of your
car audio system and your entire car against electrical fire hazards from a shortcircuit of the
main power cable with chassis ground, you must insert a main fuse (holder) within the first
30cm of the battery. The fuse type/value should be matching the limitations of your main
power cable and the requirements of your car audio system. For example 60 A fuse when
using the 20 mm² power cable. Now you route the ground cable to the amp-module. It is
best to keep the ground cable ("-12V") as short as possible, i.e. to find a chassis contact
very close to the amplifier. The ground power cable must have the same cross-section as
the positive power cable. It is recommended to use a corrosion-resistant gold-plated power
ring or a massive ground clamp between the ground cable and the chassis ground point.
Keep in mind that audible interferences and problems originating in the power supply of the
amplifier are mostly based on a bad ground contact.
4.2 RCA INTERCONNECTS / REMOTE LEAD
Carefully run the RCA audio signal interconnect(s) and the remote switching cable from the
head-unit to the amplifier. The audio signal cables should be routed completely separate
from the power cables. Use only double or triple shielded quality cables!
Connect the remote wire lead to the remote output of the headunit and to the remote input
terminal of the amplifier. Finally connect the RCA interconnect cable(s) to the respective
outputs on the head-unit and the RCA inputs of the amp-module.
4.3 HIGH LEVEL INPUT
If your headunit does not have RCA outputs, you can use the "HIGH LEVEL INPUT".
To use this, connect the "HIGH LEVEL INPUT" to the loudspeaker outputs of your headunit
or parallel to the rear speakers in your car.
If your headunit does not support a remote output, you can use the automatic turn on/
off function. This function is controlled by the audio signal itself. Therefore please set the
"SWITCH" to "ON".
