• If you are installing the stereo in a location that is exposed
to water, apply silicone-based marine sealant on the
mounting surface around the cutout.
NOTICE
Do not install the included mounting gasket if you applied
sealant to the mounting surface. Using sealant and the
mounting gasket may reduce water resistance.
13
Place the stereo into the cutout.
14
Secure the stereo to the mounting surface using the included
screws
Â
.
You should hand-tighten the screws when securing the
stereo to the mounting surface to avoid overtightening them.
15
Snap the screw covers in place
Ã
.
Connection Considerations
You must connect the stereo to power, to speakers, and to
media input sources. You should carefully plan the layout of the
stereo, speakers, input sources, and optional FUSION
PartyBus
™
devices and FUSION PartyBus network before
making any connections.
Port Identification
À
Connects to a FUSION PartyBus stereo or network (FUSION
PartyBus Networking, page 3).
Á
FUSE Contains the 15 A fuse.
Â
Connects to a typical AM/FM antenna.
If you are installing the stereo on a boat with a metal hull, you
must use a ground-dependent antenna. If you are installing
the stereo on a boat with a non-metal hull, you must use a
ground-independent antenna. See the installation instructions
provided with your antenna for more information.
Ã
Connects to the wiring harness
Wiring Harness
Wire Function Wire
Color/
Label
Notes
Ground (-) Black Connects to the negative terminal of a
12 Vdc power source. You should
connect this wire before connecting the
yellow wire. All accessories connected to
the stereo must share a common ground
location.
Power (+) Yellow Connects to the positive terminal of a
12 Vdc power source capable of
supplying 15 A. You should fuse this wire
as closely to the power source as
possible with a 15 A fuse.
Ignition Red Connects to a separately-switched,
12 Vdc connection, such as an ignition
bus, to turn the stereo on and off. If you
are not using a switched 12 Vdc
connection, you must connect this wire to
the same source as the yellow (power)
wire.
Wire Function Wire
Color/
Label
Notes
Amplifier on Blue Connects to an optional external amplifier
to turn on he amplifier when the stereo
turns on.
Dim Orange Connects to the boat's illumination wire to
dim the stereo screen when the boat's
lights are on.
The gauge of the illumination wire must
be suitable for the fuse supplying the
circuit it is connected to.
Speaker left (+) White
Speaker left (-) White/
black
Speaker right
(+)
Gray
Speaker right
(-)
Gray/black
Line out (left)
Line out (right)
ZONE 1
LINE OUT
Provides output to an external amplifier,
and is associated with the volume control
for zone 1.
Subwoofer out SUB OUT Provides a single, mono output to a
powered subwoofer or subwoofer
amplifier. A connected subwoofer is
associated with the volume control for
zone 1.
Connecting to Power
When connecting the stereo to power, you must connect both
power wires. You should connect the yellow power wire directly
to the battery. This provides power to the stereo and a constant
trickle-power standby feed.
You should connect the red signal wire to the same battery
through the ignition or another manual switch to turn the stereo
on and off. If you are not routing the red wire through the ignition
or another manual switch, you can connect the red wire to the
yellow wire, and connect them both to the positive (+) battery
terminal.
You must connect the power wires to the battery through a 15 A
fuse or a 15 A circuit breaker.
If it is necessary to extend the yellow power and black ground
wires, use 14 AWG (2.08 mm
2
) wire. For extensions longer than
1 m (3 ft.), use 12 AWG (3.31 mm²) wire. If it is necessary to
extend the red wire, use 22 AWG (0.33 mm
2
) wire.
1
Route the yellow power
À
, red signal
Á
, and black ground
Â
wires to the battery, and route the wiring-harness plug to the
stereo.
Do not connect the wiring harness to the stereo until all of the
bare wire connections have been made.
2
Connect the black wire to the negative (-) battery terminal.
3
If you are routing the red wire through the ignition or another
manual switch
Ã
, connect the red signal wire to the ignition
or switch.
4
Connect the red wire to the yellow wire, install a 15 A fuse
Ä
as close to the battery as possible, and connect both wires to
the positive (+) battery terminal.
2 Apollo SRX400 Installation Instructions