Discount Car Stereo VOL-AUX User manual

Courtesy of: DiscountCarStereo.com
Serving the internet community since 1995
Created: May 11, 2017
Revised December 21, 2022

PRODUCT SAFETY & DISCLAIMER
READ ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING, FAILURE TO DO SO MAY CAUSE
PERSONAL INJURY OR DAMAGE TO PRODUCT AND/OR PROPERTY
•This installation guide is provided as a GENERAL installation guide, some vehicles vary and
may require additional steps. We do not accept responsibility for third party labor charges
or modifications. Exercise due-diligence when installing this product.
•We do not accept any responsibility for vehicle damage or personal injury resulting from
the installation of this product.
Careless installation and operation can result in equipment damage
Requirements:
CD changer controlling radios (SC, CT, CR)
Introduction:
This simple aux adapter allows users to connect and play any audio device via a
3.5mm jack in select 1984-01 Volvo CD changer controlling radios. Connects to
the 8-pin CD changer socket on radio which guarantees the best quality playback
on the car speakers. Keep the factory radio and enjoy music content stored on
audio device or from internet connected devices. The VOL-AUX replaces factory
CD changer (if present) and is the accessory you want to update vintage Volvo
OEM radios.
Installation:
Requires pulling radio from dashboard.
Although not critical, we recommend disconnecting the car battery.
Keep in mind that most Volvo radios are coded and will not operate
without the code. Radio code must be available for radio to operate
upon reconnection. The following guide is based on Volvo “SC” radio.
1. To remove press to release ring tabs at the bottom Left/Right of radio
as seen in Fig. 1
Fig. 1
2. Pull on both ring tabs as seen in Fig. 2. Radio should slide out
dashboard
Fig. 2
3. Connect adapter 8-pin plug (See Fig. 3) to CD changer socket on radio
(See. Fig. 4).
Factory CD changer (if present) must be disconnected.

Fig. 3
Fig. 4
“CD”socket
4. Tap/connect yellow wire to radio’s battery supply (See Fig. 3)
Volvo battery supply wire is either GREEN/BROWN wires at pin 3 or 9
on “SC” radios (See Fig. 5)
Or GREEN/RED wire at pin 9 on non-SC radios (e.g., CT etc.)
Fig. 5
12V battery supply wires
5. Connect one end of supplied 3.5mm audio cable (See Fig. 6) to input
jack on adapter (See Fig. 7) and route audio cable other end to the
front of the dash or wherever audio device will reside (within 3 ft.)
Fig. 6
3 ft. Aux cable
Fig. 7
Aux jack

Operation:
1. Turn ignition and radio “ON”
2. Press "CD”, CH6, or “CHGR” button on radio
Note: If radio does not switch to CD changer mode; cycle ignition OFF/ON
and try again.
3. Place audio device in playback mode and raise its volume to 85%. If
distorted, lower volume on device until playback is distortion free.
You must use smartphone or audio device built-in controls to
access and control the audio files. Volvo radio buttons do not
control aux device.
4. If correct operation is confirmed go ahead and reinstall the Radio.
Optional NF3A Noise Filter:
A noise filter (See Fig. 8) may be required in case of alternator whine or
similar noise during playback.
To install noise filter:
Disconnect YELLOW wire (in step 4) and connect to filter red wire (OUT).
Connect filter RED wire (IN) to GREEN/BROWN wire on radio harness
Connect filter BLACK wires (both in and out) to radio chassis (or Ground)
Fig.8
noise filter
Frequently asked questions & troubleshooting
1. Does the VOL-AUX work on all Volvo radios?
NO; the VOL-AUX works on select 1984-01 Volvo CD changer controlling
radios. The radio part number must begin with “SC”, “CT” and “CR” (locate
part number on radio faceplate).
2. My radio has a built-in 6 CD changer, will the VOL-AUX work?
YES. Volvo radios with bult-in 3 and 6-disc changers are supported. The
built-in CD changer is not affected, however any external/remote CD
changer (in trunk/hatch etc.) must be disconnected.
3. Can I use the radio buttons to control audio device?
NO; the VOL-AUX does not control your audio device. Use the device built-in
controls to browse music library.
4. Will I be able to make phone calls using this device?
NO; but placing radio in CD changer mode and phone in speaker mode
allows caller to be heard on car speakers.
5. What happens if phone rings while playing music?
The phone will mute audio playback, you then decide to take or reject call.
Music playback resumes as soon as call ends.
6. I would like to have an aux jack on the dashboard. Is this possible?
YES; Purchase optional 3.5F-DM dash mount cable provides a dash mount
jack for a factory look and finish.
Disclaimer
• This product has no affiliation with Volvo.
• We’re not liable for misuse of this product.
•We recommend professional installation.
Email [email protected]
©1995-Dec-22 Discount Car Stereo, Inc. All rights reserved. Information in this document is subject to
change without notice. Other products and companies referred to herein are trademarks or registered
trademarks of their respective companies or mark holders.