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AP4-GM61
Wiring Connection Chart
To Tuner
Module Layout
Interface Connector 1
Expansion Port
Programming Button
USB Connection
Installation
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.
1 2 3 4
Two Channel Mode
DIP
ON
1. Access the factory radio module (see location info in Figure 1, next page).
2. Disconnect the Gray 20-pin factory harness and the Gray 8-pin harness from the tuner module (Figure 2, next page).
3. Connect the AmpPRO harness to vehicle harness.
4. Connect the AmpPRO harness to factory tuner module.
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 section on page 5 for more details.
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 amplifier.
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 configuration.
Pacific Accessory Corporation
Remote Turn On Output
2A Max Output
To Vehicle
Harness
AP4-GM61-HAR
*Non-Fading
Feature Select
DIP switches
Non-Fading Level Control
Knob Connection
5v / 4v Preout
1
© 2018 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
Advanced Amplifier Interface for
TOSLINK
Optional
Non-Fading
Level Control
Knob
TOSLINK Output
Front Output
Ch. 1(L) and 2(R)
No Function
2
3
PAC-audio.com
General Motors
1(L) 2(R)
3(L)
4(R)
5
6
Front
Rear
5-Center
6-NF*
To Aftermarket
Amplifier
Rear Output
Ch. 3(L) and 4(R)
Center Channel
Output Ch. 5
Non-Fading
Output Ch. 6
No Function
4
Rev: V3
Date:072618
LED 1
LED 2
Page 2
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