AAI-GM9 - Auxiliary audio interface PAC - Free user manual and instructions

Product Type	Auxiliary Audio Interface
Compatible Vehicle Makes	General Motors (GM) vehicles with factory radio and OnStar
Input Connector	3.5 mm auxiliary input jack
Output Connector	Vehicle-specific harness (GM24 or similar)
Functionality	Adds auxiliary audio input while retaining factory radio, chimes, and OnStar
Power Source	Vehicle electrical system (12V DC)
Dimensions (approx.)	2.5 x 1.5 x 0.75 inches
Weight	0.1 lbs
Operating Temperature	-40°F to 185°F (-40°C to 85°C)
Installation Type	Plug-and-play, no cutting of factory wires
Audio Channels	Stereo (left and right)
Signal-to-Noise Ratio	Greater than 90 dB
Total Harmonic Distortion	Less than 0.05%
Frequency Response	20 Hz – 20 kHz
Compatible Radios	Most factory GM radios (2000-2010 models)
Retained Features	Factory chimes, OnStar, door chimes, Bluetooth if equipped
Included Accessories	AAI-GM9 interface module, wiring harness, mounting hardware, manual
Installation Difficulty	Easy, typically under 30 minutes
Warranty	1 year limited warranty
Certifications	RoHS compliant
Maintenance	No maintenance required; keep dry and clean
Safety Notes	Disconnect vehicle battery before installation to avoid short circuits
Repairability	Non-serviceable; replace entire module if defective
Storage Conditions	Store in a cool, dry place; avoid extreme temperatures

Frequently Asked Questions - AAI-GM9 PAC

What is the PAC AAI-GM9 used for?

The PAC AAI-GM9 is an auxiliary audio interface that allows you to connect an external audio source (like an MP3 player, smartphone, or satellite radio) to your factory GM radio while retaining factory features such as chimes and OnStar.

Is the AAI-GM9 compatible with my vehicle?

The AAI-GM9 is designed for most General Motors vehicles (Chevrolet, GMC, Buick, Cadillac) with factory radios. It typically works with models from 2000 to 2010. Check your vehicle's radio connector type to ensure compatibility.

Will the factory chimes and OnStar still work after installation?

Yes, the AAI-GM9 is designed to retain factory chimes, OnStar, and other audio alerts. The interface integrates seamlessly with the vehicle's electronics.

Do I need to cut any wires for installation?

No, the installation is plug-and-play. The interface includes a harness that connects directly to your factory radio without cutting or splicing wires.

How do I use the auxiliary input?

After installation, simply connect your external audio device to the 3.5mm auxiliary input jack (usually located near the radio or in the glove box). Select the auxiliary input on your factory radio by pressing a button or using the source select function.

Can I install the AAI-GM9 in a vehicle with a factory amplifier?

Yes, the AAI-GM9 is compatible with factory amplified systems. It integrates with the existing amplifier and retains all audio processing.

What is the audio quality like?

The AAI-GM9 provides high-quality stereo audio with a signal-to-noise ratio greater than 90 dB and low distortion, ensuring clear sound reproduction.

Can I use the AAI-GM9 with aftermarket radios?

No, the AAI-GM9 is specifically designed for use with factory GM radios. For aftermarket radios, use a different adapter.

How do I troubleshoot if the auxiliary input is not working?

First, ensure the external device is turned on and the volume is up. Check that the 3.5mm cable is fully inserted. Verify the radio source is set to auxiliary. If still not working, inspect the harness connection and verify power and ground to the interface using a multimeter.

Where can I find the installation instructions?

Installation instructions are included in the package. You can also download a PDF from the manufacturer's website or from online resources like notice-facile.com.

USER MANUAL AAI-GM9 PAC

Auxiliary Audio Input for GM Vehicles

Description

The AAI-GM9 allows direct interface of any preamp level audio source to a GM factory radio with a slave unit, eliminating the need for sound degrading solutions like an FM modulator. The AAI-GM9 interface inputs sources from units such as a DVD, VCP, MP3, Satellite Radio or PlayStation.

• Lower cost and higher quality sound than a FM modulator.
• Perfect for SUV's like Escalade, Tahoe, Suburban, Denali and Yukon.
• Comes with a three position switch which allows you to switch between two auxiliary inputs and the factory slave unit.
  • High quality audio isolation IC eliminates engine noise.
• Internal CMOS electronic switching for long term reliability.
• Completely plug & play. Requires no external wiring.
• Seamless operation with OnStar® equipped vehicles.

Requirements: For 1995-2002 vehicles* the Sedan or SUV factory headunit must have a working slave unit which uses the GM 9 pin connector. Slave unit examples are: factory/aftermarket CD changer, separate factory cassette player or single CD player.

Installation

1. Remove factory 9 pin connector from radio and insert the AAI-GM9 male plug in it's place. Plug factory 9 pin connector into the AAI-GM9 female connector as shown in Fig.1 below.
2. Plug RCA cables from first audio source into Aux1 input of AAI-GM9. If there is a second audio source, plug RCA into Aux2 input.
3. Mount the toggle switch in a suitable location.

1999-2000 Cadillac Escalade, GMC Denali and 1999-2002 Pontiac Grand Prix, see bulletin.

Testing

1. Turn radio on and select Tape or CD changer source. Note: a cassette or CD must be inserted into the slave unit and playing.
2. With the switch in the middle position you should hear the Tape or CD audio.
3. When you flip the switch left or right of the middle position, you should hear Aux1 or Aux2 audio.
4. Vehicles with OnStar®: When activating OnStar® with the AAI-GM9 switch to either Aux1 or Aux2, the auxiliary audio will be automatically overridden so OnStar® audio can be heard. When turning off OnStar®, Aux1 or Aux2 audio will resume.
5. Portable Players: Connect the brown wire to chassis ground only if the portable player and other audio source is not using the vehicle's battery as a power supply.

Using external video source to automatically trigger the AAI-GM9 for Aux2

Most overhead video consoles have a +12 volt trigger output when the video system is turned on. Use a SPDT relay as shown and connect pin 30 of relay to the AAI-GM9 switch's red wire. Connect pin 87 to the AAI-GM9 switch's shield wire. Use Aux2 as the external audio source input and leave switch in the middle position. This automatic feature will only work on Aux2 input and not Aux1.

Bulletin

1999-2000 Escalade, Denali and 1999-2002 Pontiac Grand Prix

To retain the automatic switching when OnStar® is activated, relocating the Lt.. green wire from the AAI-GM9 to the factory 21 pin radio connector will be necessary.

1. Cut the Lt.. green wire coming from the AAI-GM9 at white plug leaving the wire in between the two connectors intact. Tap the wire into pin #15 dark green wire of the factory 21 pin connector shown to the right.

Factory Plug Shown from pin side not wire side