Courtesy of: DiscountCarStereo.com
Serving the internet community since 1995
BLU-GM2
BLUETOOTH MUSIC STREAMING INSTALLATION GUIDE FOR SELECT 1995-04 CADILLAC & OLDSMOBILE
PRE-WIRED FOR CD CHANGER
Created October 10, 2016
Revised January 27, 2021
Introduction:
Many Cadillac & Oldsmobile owners with older cars will be pleased to know they
can upgrade to music steaming without changing the radio. The BLU-GM2
Bluetooth music kit works on radios with CD changer controls but replaces CD
changer (if present). A wireless connection means no wires, clutter or
complicated setup. All the user has to do is connect the module to factory 10-
pin plug (must have 10-pin plug), pair Smartphone, Tablet etc. and enjoy tons
of applications including Pandora, Apple music, GPS and more on car stereo.
See Frequently Asked question at the end of this guide for details.
Module connects to factory 10-pin plug which is reserved
for optional CD changer usually in remote area (Glovebox,
armrest, trunk/hatch etc.) Please verify your vehicle has
required 10-pin plug (See Fig. 1) prior to ordering.
Installation: (To factory 10-pin CD changer plug)
1. Locate factory 10-pin plug in remote area (e.g., armrest, glovebox,
hatch, trunk etc.)
Note: CD changer (if present) must be disconnected.
2. Connect factory 10-pin plug (See Fig. 1) to installation harness 10-pin
connector (white) (See Fig. 2 & 3)
Fig. 1
Fig. 2
3. Connect installation harness 22-pin Molex plug (See Fig.3) to module
22-pin Molex connector (See Fig. 4)
Fig. 3
installation harness plug
Fig. 4
22-pin connector
4. Ensure module dip-switches #3 and #8 are “ON” or down (See Fig. 5)
Note: If after installation, radio fails to enter “CD changer” mode,
disconnect module 22-pin plug and move switch #1 “ON” so that 1, 3
and 8 are “ON”. Reconnect module and try again.
Fig. 5
dip switches
5. Connect/Tap installation harness red wire to a 12V accessory source
in vehicle. We suggest yellow wire (pin F2) on factory radio 32-pin plug
See Fig. 4.
Other sources include ignition harness, fuse panel etc.
Do not connect red wire to 12V battery (always on) supply wire.
Fig. 4
Factory 32-pin radio plug
Pairing:
The pairing process varies among devices but basic steps are the same.
This process is done upon initial install and will not have to be repeated.
1. Turn Ignition and radio “ON”
2. Blue LED inside module should begin flashing (pairing mode)
3. On A2DP device: go to
Settings, Wireless & Networks, Bluetooth
Settings
4. Enable
Bluetooth
(if not already)
5. Select Bluetooth settings
6. Tap
Scan for devices
.
7. Wait for the Bluetooth device name to appear and select it. (See below)
Test Operation:
1. Turn ignition/radio “ON”
2. Press “SOURCE” button on radio
3. Launch Smartphone or tablet streaming application.
4. Use radio volume control button to set playback level.
Playlist and Track selection is *NOT* possible from the
radio. Use the smartphone built-in controls or optional
remote control to access and control audio files.
5. If correct operation is confirmed go ahead and reinstall radio.
Optional Remote Control:
Purchase optional Bluetooth wireless remote to control music apps while
keeping eyes on the road.
This remote control allows users to:
1. Control music wirelessly
2. Activate Phone commands (Google play)—Not Siri
3. Track up/down
4. Volume up/down
Pairing:
Operation:
Use wireless remote to perform the following functions on any iOS7.0 and higher
or Android 4.4 and higher.
Contents:
Feature Comparison:
You may have seen or heard of the many different cables and adapters we offer
for your car, Van SUV or truck. The following table provides a break down for
each product and we hope it is useful in determining which of the many solutions
meet your need.
These adapters are all compatible with 1995-05 listed in drop-down on product
page equipped with original factory radio.
FEATURE
AUX-GM1
PXDXGM1
A2D-GM1
BLU-GM2
Retains separate/slave Unit*
✓
X
✓
X
Auxiliary input (3.5mm plug)
✓
✓
X
X
Requires separate/slave Unit*
✓
X
✓
X
Music streaming
X
X
✓
✓
Supports Hands Free Calls
X**
X**
X
X
Wireless connection
X
X
✓
✓
Connects behind radio
✓
✓
✓
X
Plug-n-play installation
✓
✓
✓
X
*Separate/Slave units (single CD, Cassette player or CD changer) are installed in lower
dash or below climate controls. Main Theftlock radio is installed in upper dash.
** Speakerphone is possible by which the caller can be heard on car speaker
Frequent asked questions
1. My radio has a “Source” button but does not have a 10-pin plug. Will
the BLU-GM2 work?
NO! For the BLU-GM2 to work, vehicle must be wired with 10-pin plug
usually reserved for optional CD changer. If vehicle does not have a 10-
pin plug, the BLU-GM2 will NOT apply.
2. My vehicle has a CD changer in glovebox. Will it continue working after
installing the BLU-GM2?
NO; the BLU-GM2 replaces CD changer (changer must be disconnected and
will no longer play). Purchase our A2D-GM2 for both Bluetooth and cd
changer retention.
3. Does removing the BLU-GM2 cause any troubles with vehicle wiring?
NO; the BLU-GM2 does not interfere with factory wiring integrity. Once
disconnected the system will function as it did prior.
4. How good is sound quality?
Sound quality is very good and without static or interference provided
vehicles electrical systems are up to standards.
5. Can I use the BLU-GM2 to make/receive phone calls?
NO; supports Bluetooth music streaming (NOT for Hands-Fee calls).
6. What happens if the phone rings while streaming?
The radio will mute and users may take the call on the handset (as in
portable mode). Once call ends, music streaming resumes automatically.
7. Pressing the “Source” button on radio does nothing. Is this a faulty
module?
The module is shipped with dip switches #3 and 8 in the “ON” position,
however some radios may not respond to this setting in which case we
recommend disconnecting module 22-pin plug and move switch #1 “ON” so
that 1, 3 and 8 are “ON”. Reconnect module and try again.
Email support@discountcarstereo.com
© 1995-Jan-21 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.
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