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6
ADJUSTMENT OF FM MODULATOR AUDIO LEVEL
The audio level from the modulator is factory-set to provide the correct volume
balance between radio and CD changer in the majority of installations and usually
will not require any adjustment. If, however, a large difference in volume level is
noted when switching between CD changer and FM radio operation, the audio level
from the CD changer may be adjusted as follows:
1. With the CD changer off, tune to an FM station and adjust the volume control on
the radio to a normal listening level.
2. Leaving the volume control at the setting, turn on the CD changer and tune the
radio to the modulator output frequency (89.1 or 88.7 MHz.).
3. Select a
LOUD section of the CD. If the volume level is comparable to that of
the FM station in step 1, no adjustment is necessary. If it is noticeably louder or
more quiet than that of the radio station, use a # 0 Phillips screwdriver to adjust
the "AUDIO LEVEL" control on the modulator so that the CD changer volume
is comparable to that of the radio station.
IMPORTANT: If the modulator audio level is adjusted too high, it may result in
unacceptable levels of distortion during loud sections of CD's. If set too low, it may
result in poor signal/noise levels during CD changer operation.
RF output
(89.1MHz or
88.7MHz)
Fuse 2A
To car antenna
FM Modulator
DIN cable
FM Radio
Antenna
socket
+12 volt Accessory/Switched
(ORANGE w/WHITE STRIPE)
Connect this wire to a point which is energized when the
ignition switch is turned to the "ON" or "ACCESSORY"
position.
+12 volt Constant (GREEN w/WHITE STRIPE)
Connect this lead to the cable to which power is continu-
ously supplied and which has been passed through the
vehicle's fuse block.
Ground (BLACK)
Screw this to a metal part of the vehicle. Clean connecting
area of paint, dirt, etc. A poor ground connection can
cause incorrect or noisy operation.
To +12V ACC,
Speakers, etc.
SYSTEM WIRING AND ADJUSTMENT
Commander connection cord
ADJUSTMENT OF FM MODULATOR OUTPUT FREQUENCY
l If there is interference from a local station or a clear signal cannot be obtained
on 89.1 MHz., change the position of the frequency select switch on the side of
the FM Modulator and tune the radio to 88.7 MHz. when using the CD changer.
l Select the frequency before mounting the FM Modulator.
l Radio sensitivity may be slightly reduced when the FM Modulator is connected.
FM Modulator
Audio Level
Adjust
FM Modulator
Slide Switch
#0 Phillips Screwdriver
Move to 88.7M Position
Wired
Commander
6
COMPACT
ACC-40
DIGITAL AUDIO 6 DISC
COMPACT DISC CHANGER
CD changer
Fuse 5A
IMPORTANT IMPORTANT
IMPORTANT IMPORTANT
IMPORTANT - Some import cars use a special dual antenna “Diversity" system.
If your car has this type of antenna system, you will find the antenna cable will
not fit the socket on the FM modulator. Use of the ACC-40 with “Diversity"
systems is not recommended. You may also find some GM cars and others
have an antenna plug that is too small to mate with the socket on the FM
modulator. If this is found, call Audiovox’s Toll-Free Assistance for a special
adaptor. This adaptor can also be purchased at most car stereo installation
center.
LOU
N
E
P
O
MUT
321
AS/PS
SEK
654
EQ
T/F
MAN
TAPE
BAND