GMC A2DIY-GM1 User manual

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Serving the internet community since 1995
A2DIY-GM1
QUICK START BLUETOOTH INSTALLATION GUIDE FOR SELECT 1995-05 GM
Created March1, 2017
Revised: January 26, 2021

Introduction: (newest version)
Many GM owners looking to add Bluetooth without changing the original radio will
be pleased to find the A2DIY-GM1. This new release features Bluetooth Hands-
Free and music streaming from any smartphone or Tablet with A2DP and
Hands-Free profile. In addition to Bluetooth, a 3.5mm input jack is included to
connect and play portable audio devices (e.g., Mp3 Players, satellite radio kit,
iPods etc.) and optional USB fast charging port which automatically
determines the amount of current required to charge device while on the road
and new media button (replaces wireless remote) from which users may change
tracks, volume, switch between sources, end phone calls and more while keeping
eyes on the road.
Keep the radio and car you love while enjoying Bluetooth features only
available on newer cars. For more details, see Frequently Asked question at
the end of this guide.
Installation:
1. Remove factory radio from dash (Vehicle specific radio removal
procedure is not part of this guide but available upon request)
2. If vehicle is equipped with a CD changer, slave unit or Bose system;
disconnect 9-pin plug from radio (See. Fig. 1). This port will be empty if
vehicle does not have any of the aforementioned factory options ---
skip to step 2.
Fig. 1
Radio 9-pin port
3. Connect installation harness 9-pin plug (black) (See Fig. 2) to radio 9-
pin port (See Fig. 1)
Fig. 2
installation harness
4. If vehicle has Bose system, connect factory 9-pin plug (removed from
radio in step 2) to installation harness matting 9-in connector (white)
Vehicles with slave CD or Tape player (in lower dash); remain
disconnected and 9-pin connector (white) on installation harness
remains empty.
5. Connect installation harness 22-pin Molex plug (See Fig. 2) to module
22-pin connector (See Fig. 3)
Fig. 3
Module

6. Auxiliary input connection: Connect supplied 3.5mm audio cable (See
Fig. 4) to module “AUX” jack (See Fig. 3). Route cable other end to
front of dash or wherever Aux device will reside (within 3 ft.)
Fig. 4
7. Install microphone (See Fig. 5) to vehicles visor or headliner using
included visor clip (See Fig. 6).
Fig. 5
Microphone
Fig. 6
Visor clip
8. Carefully route microphones 1/8” plug down pillar and behind the dash
and plug into module “MIC” input jack (See Fig. 3)
Fig. 7
Optional USB “Fast Charge” Kit (not for thumb drives etc.)
This fast charge USB kit can be added to any vehicle. It supports BC1.2, QC2.0,
QC3.0, PE1.1, PE2.0, FCP, SFCP fast charge protocols (Apple, Samsung, Huawei
etc.)
Note: iPhone "Fast charge" kicks in when battery capacity is between 0-79%,
and return to regular charge mode when it reaches 80%.
Should you decide on this add-on, we suggest one of 2 connecting options:
A. Flush to dash/panel requires drilling a ¾” hole
B. Flush with support bracket (Mount USB terminal wherever your installation
demands without drilling)
A. Flush to Dash or Panel (requires drilling)
1. Drill a ¾” hole in the dash or panel using a step drill bit or equivalent
(See Fig. 8)
Fig. 8
Step drill bit

2. Insert USB male cable terminal (See Fig. 9) through ¾” hole created in
step 1 and connect to module USB charging port (See Fig. 10)
Fig. 9
USB cable with bracket
Fig. 10
charging port
3. Snap USB cable head (See Fig. 11) to mounting surface (See Fig. 12)
Fig. 11
USB head
Fig. 12
Flush mounted to dash
4. Tuck and secure any extra wire from moving parts and test operation
(See Enabling the AUX section below)
B. USB with Bracket Mount (No drilling)
1. Locate flat surface at location of choice within 3.2 ft. of radio and
mount USB support bracket (See Fig. 13) to surface using
adhesive/tape or screws.
Fig. 13
USB mounting bracket
2. Insert USB cable male terminal (See Fig.14) through hole in bracket
and connect to module USB charging port (See Fig. 10)
Fig. 14
3. Snap USB cable head in place until flush (See Fig. 15)
Fig. 15
Tuck and secure any extra wire away from moving parts and test operation ( See
Bluetooth Pairing and Connection

Pairing:
Pairing 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”
Blue LED through module peephole will flash (pairing mode)
2. On A2DP device: go to Bluetooth Settings
3. Select Bluetooth and turn on
4. Tap Scan for devices .
5. Wait for Bluetooth device name (LANNI) to appear and tap it. Once
paired Blue LED through peephole will blink once every 3 seconds and
confirmation tone is heard on car speakers
One connection
The A2DIY-GM1 connects to one device at a time. First device must be
disconnected in order to pair a second device or simply turn OFF Bluetooth on
first device.
Warning! Voice recognition (VR) applications (e.g., Siri, Google Play etc.) must
be enabled on device as you would in portable mode.
Bluetooth Media button
Pairing media button: Ensure Bluetooth is enabled on your device (e.g.,
Smartphone/Tablet etc.) scan/search for available devices and select BT009
from list. Media button can be paired with multiple devices but can only operate
one at a time.
Fig. 16
Installing media button:
Attach button to steering wheel (includes holder) or dashboard to safely and
conveniently control multi-media functions even when smartphone is out of
reach.
Charging Media Button:
Media button has a built-in rechargeable 200mAH battery which may last up to
10 days. Use supplied USB cable to connect media button to charging source.
Reaches full charge after 2 hours.

Media button Operation:
Once paired with smartphone/Tablet, users may perform the following functions
on iOS devices with Bluetooth 3.0 and later and Android 4.0 or later.
These functions do not apply to the Jaguar radio.
Test Operation:
1. Turn ignition and radio “ON”
2. Press AUX button on radio.
3. Launch smartphone or tablet music streaming application
4. Use media button to change tracks, adjust volume, pause playback etc.
5. Place call or ask someone to call. Press media button pause/play to
answer/end call.
6. To switch between AUX and Bluetooth, press media button pause/play
f correct operation is confirmed go ahead and reinstall radio.
Bluetooth Kit comparison chart
Feature
BLU-GM1
A2D-GM1
A2DIY-GM1
Slave unit required/retained
x
✓
x
3.5mm AUX input
x
x
✓
USB charging port
x
x
**
Mutes audio system
*
*
*
Hands-Free calls
x
x
✓
Music streaming
✓
✓
✓
Push-to-talk button
x
x
x
Multi-device pairing
✓
✓
✓
Media button/remote control
**
**
✓
* Radio must be in “Bluetooth”mode (AUX mode)
** Optional
Notes:
1. If playback is distorted or low, adjust volume on Bluetooth device.
2. On incoming calls, ring tone plays on car speakers
3. Bluetooth range is approximately 30 ft. ensure device is within range
4. Music streaming has priority.
5. *Media button does not control AUX or radio functions. Use AUX device
built-on control for music selection etc.
6.

Frequent asked questions
1. What’s the difference between A2D-GM1 and A2DIY-GM1?
The A2D-GM1 supports music steaming, the A2DIY-GM1 supports music
streaming, Hands-Free calls and Auxiliary input (3.5mm jack)
2. Does the A2DIY-GM1 work on all GM radios?
NO; works on 1995-05 GM AM/FM/Cassette radios and 2000-05
AM/FM/CD radios. 1995-99 AM/FM/CD radios are NOT compatible
unless vehicle also has a SEPARATE cassette or CD player in lower
dash.
3. Can I control smartphone from radio buttons?
NO; use smartphone built-in controls and display or included media button
4. Can I pair or save more than one device with the A2DIY-GM1?
YES; however only one connection is possible at a time. To pair a second
device, you must disconnect/unpair first device.
5. Aux playback is interrupted when pressing phone buttons, is this
normal?
YES, playback is briefly paused when phone button is pressed.
6. After installing everything I get no sound. What could be wrong?
Your vehicle likely has a Bose system and the factory 9-pin plug was left
disconnected. Please proceed to installation step 4 to resolve this issue.
Disclaimer
• This product has no affiliation with GM.
• We’re not liable for misuse of this product.
•We recommend professional installation.
Email [email protected]
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