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Connecting to Power Through an Ignition Switch
This method of connection is used most often on ski boats, wake boats, and similar sport or recreational
vessels where power to the engines is toggled often. For these installations, a quick standby and faster startup
time is desired so that music can be stopped and begin playing again as quickly as possible after restarting the
engines. When in standby mode, the stereo uses up to 200 mA, and you should connect the power wires
through a circuit breaker or manual switch to avoid draining the battery when you are not using the boat.
1 Consult this diagram to plan the wire connections.
Item Description
Yellow wire
Red wire
1 A fuse (not included)
Ignition or ACC switch
Black wire
15 A fuse (not
included)
15 A circuit breaker or
manual switch
2 Route all wires to the stereo wiring harness, the ignition or ACC switch, the circuit breaker, and the power
source as necessary.
Do not connect the wiring harness to the stereo until after you have made all of the bare wire connections.
3 Install all of the necessary fuses on the red and yellow wires.
4 Connect the wiring harness to the stereo.
When you turn on the ignition switch, the stereo turns on along with other accessory electronics. When you turn
off the ignition switch, the stereo enters a low-power standby mode.
NOTE: When you are not using the vessel for an extended period of time, you should remove power to the
stereo using the circuit breaker or other manual switch on the yellow wire to avoid draining the battery.
8
Notes
You must connect this wire to the same power source as the ignition or
ACC switch.
You must connect this wire to the ignition or ACC switch before you
connect it to the same power source as the yellow wire.
You must install this fuse on the red wire before you connect the red wire to
the ignition or ACC switch.
Connecting the red wire to this switch allows the stereo to enter a low-
power standby mode when you turn off the engines, so it can start up faster
when you turn on the engines again.
Ground (-)
This fuse is required if you are not able to connect to power through a 15 A
circuit breaker
.
If a circuit breaker is not available, you must connect a 15 A fuse
yellow wire. You should also connect the yellow wire to power using a
manual switch, so you can remove power to the stereo when you are not
using the boat.
Apollo SRX400 Installation Instructions
on the
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