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? No sound can be heard, or the volume is low.
✔ Attenuator is turned on.
Turn off Attenuator.
✔ The fader or balance settings are set all the
way to one side.
Reset the fader and/or balance settings.
✔ The input/output wires or wiring harness are
connected incorrectly.
Reconnect the input/output wires or the
wiring harness correctly. See the section on
<INSTALLATION MANUAL>.
? The sound quality is poor or distorted.
✔ One of the speaker wires is being pinched by a
screw in the car.
Check the speaker wiring.
✔ The speakers are not wired correctly.
Reconnect the speaker wires so that each
output terminal is connected to a different
speaker.
? Radio reception is poor.
✔ The car antenna is not extended.
Pull the antenna out all the way.
✔ The antenna control wire is not connected.
Connect the wire correctly, referring to the
section on <INSTALLATION MANUAL>.
? The memory is erased when the ignition is
turned off.
✔ The battery wire has not been connected to
the proper terminal.
Connect the wire correctly, referring to the
section on <INSTALLATION MANUAL>.
✔ The ignition and battery wire are incorrectly
connected.
Connect the wire correctly, referring to the
section on <INSTALLATION MANUAL>.
? The TEL mute function does not work.
✔ The TEL mute wire is not connected properly.
Connect the wire correctly, referring to the
section on <INSTALLATION MANUAL>.
? The TEL mute function turns on even though
the TEL mute wire is not connected.
✔ The TEL mute wire is touching a metal part of
the car.
Pull the TEL mute wire away from the metal
part of the car.
? Does not switch to the rear view camera video
display when pressing the [V.SEL] button.
✔ The reverse sensor wire is disconnected.
Connect the wire correctly, referring to the
section on <INSTALLATION MANUAL>.