PAC AP4-GM71 Manual

PAC Modtager AP4-GM71

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Side 1/5

PAC-audio.com

Page 1

Rev: 1

Date:090924

Advanced Amplier Interface for

General Motors

AP4-GM71

The AP4-GM71 provides a 6-channel pre-amp output for use with aftermarket audio equipment. The AP4-GM71

delivers a variable 5v RMS pre-amp output with fading, balance, equalization, and level control capabilities. The

module also retains all audio from other vehicle features such as factory navigation prompts, Bluetooth, OnStar, and

parking sensor chimes. A data controlled remote amplier turn on wire is also provided by the AP4-GM71. The module

also provides a variable 2-channel ber optic digital audio output (TOSLINK).

Introduction and Features

Important Notes

1. This interface is only compatible in vehicles with Bose that are equipped with IOS, IOT and IOK Infotainment.

2. The factory amplier must be disconected and removed from the vehicle when the AmpPRO has been installed.

3. The remote output is rated at 2A of current. If more current is needed, an external relay must be used.

4. Channel 5 & 6 are a non-fading outputs. The outputs level of channel 5 & 6 can be controlled using the supplied level

control knob.

5. When the non-fading level control knob is not connected to the AP4-GM71, the output level of channels 5 & 6 will default to

100 percent.

6. To adjust mininum volume or chime volume without using the PC APP the level control knob must be connected.

7. The chime volume and minimum volume levels are set to a sutiable level by default. If you are happy with this level in your

particular application, then additional adjustment is not required. Please refer to the Setup and Conguration section on

page 2 for more details.

8. The factory radio's speed controlled volume and surround sound mode are not supported by the AP4 outputs.

9. When using the TOSLINK output, all chimes must be routed through the front output by setting DIP switch 1 on (down).

10. No adjustments can be made manually using the programming button, or the factory SWC when the module is connected to

a PC.

11. The AP4-GM71 is designed to be installed in the factory amplier location not behind the radio. It will replace the factory

amplier and it will no longer be used.

Wiring Connection Chart

Remote Turn On Output

2A Max Output

Front

1/L 2/R 4/R 5 63/L

Rear Sub

TOSLINK

Speaker

Leads

1-3

AP4-GM71-HAR (A) or (B) Based on Data Type (SEE MANUAL)

To Vehicle

Amplier Harness

Non-Fading

Level Control

Knob

AP4-GM71-HAR (D)

To Aftermarket

Amplifier

Speaker

Leads

4-11

AP4-GM71-HAR (C)

PAC-audio.com

Page 2

Rev: 1

Date:090924

Advanced Amplier Interface for

General Motors

AP4-GM71

Setup and Conguration

1. Turn the ignition on. LED 1 on the interface will turn on and the +12v remote output will turn on.

2. Set the amp gain(s) to the desired level. We recommend using an oscilliscope and test tones to set the amp gain(s). Please

refer to the MECP Advanced study guide (p. 360) if you are unfamiliar with this process.

3. Check volume, balance, fade and EQ settings.

4. If you would like to adjust the chime volume or minimum volume, do so using one of the methods outlined on the next page.

If you are happy with the default levels, no adjustments are necessary.

5. Please ensure your aftermarket amplier gains are set to your desired level before proceeding to the next steps.

Installation

1. Access the factory amplier (see location info to the right).

2. Disconnect all of the factory connectors from the factory

amplier as it must remain disconected.

3. Connect the AmpPRO harness to vehicle amplier harness.

4. Make sure you are using the right data harness marked (A)

or (B). Failing to do so will result in failed operation.

5. Set any feature DIP switches that apply to your install.

a. DIP switch 1 is used for two channel mode. In this mode,

both the TOSLINK and front RCA outputs (1 and 2)

become non-fading outputs. All rear chimes will also be

routed through these outputs in two channel mode.

b. Set DIP switch 2 on (down) to lower the RCA output

voltage to 4v. Leave DIP switch 2 off (up) to keep the

RCA output voltage at 5v. See the troubleshooting

DIP

1 2 3 4

Two Channel Mode 5v / 4v Preout No Function No Function

1 2 3 4

Set DIP switches to the ON position to activate the corresponding features.

Set DIP switches to the OFF position for any features that are not desired.

Module Layout

section on page 5 for more details.

c. DIP switch 3 & 4 are not used.

6. Connect the AmpPRO harness to the module.

7. Connect the level control knob to the module and install in an

accessible location.

8. Connect the signal cables and remote input from the

aftermarket amplier.

9. Turn the vehicle off, shut the doors and lock the vehicle with

the factory keyfob. Wait 5 minutes. After 5 minutes, turn

vehicle back on, and proceed with setup and conguration.

Vehicle

ehicle

Vehicle Factory

Factory

Factory Amplier Location

Amplier Location

Factory Amplier Location

Silverado / Sierra

Silverado / Sierra HD

Back wall of Cab

Colorado / Canyon Behind glove box on right side

Tahoe / Yukon

Suburban / Escalade

Left rear quarter in cargo area

Camaro Under center area of trunk

Corvette Under passenger front carpet

Equinox / Traverse /

Blazer

Acadia / Terrain

Under front center console access

from passenger side

Malibu / Trailblazer Right rear quarter in trunk

Cadillac ATS / CTS /

XT4 / XTS Right rear quarter in trunk

Cadillac CT6 Left rear quarter in trunk

Interface Connector 1

Expansion Port

Programming Button

Feature Select

DIP switches

Non-Fading Level Control

Knob Connection

USB Connection

LED 1

TOSLINK Output

Front Output

Ch. 1(L) and 2(R)

Rear Output

Ch. 3(L) and 4(R)

SUB (Non-Fading)

Ch. 5 and 6

LED 2

Produkt Specifikationer

Mærke:	PAC
Kategori:	Modtager
Model:	AP4-GM71

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