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APSUB-GM61
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
DIP
ON
1. Access the factory tuner module (see location info to the right).
2. Disconnect the Gray 20-pin factory harness and the Gray
8-pin harness from the tuner module (Figure 1).
3. Connect the APSUB harness to vehicle harness.
4. Connect the APSUB harness to factory tuner module.
5. Set any feature DIP switches that apply to your install.
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.
6. Connect the APSUB harness to the APSUB module.
7. Connect the level control knob to the module and install in
an accessible location.
8. After the aftermarket amplifier power/ground connections
are made, connect the signal cables and remote input
from the aftermarket amplifier to the APSUB.
9. Turn the vehicle off, shut the doors and lock the vehicle
with the factory key fob. Wait 5 minutes. After 5 minutes,
turn vehicle back on, and proceed with setup and
configuration.
Setup and Configuration
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 oscilloscope 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 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.
Pacific Accessory Corporation
Feature Select
DIP switches
Non-Fading Level Control
Knob Connection
No Function
5v / 4v Preout
1
© 2020 AAMP Global. All rights reserved. PAC is a Power Brand of AAMP Global.
Advanced Subwoofer Amplifier Interface
for Select General Motors Vehicles
Troubleshooting
2
3
Vehicle
Vehicle
Cadillac CT6
Cadillac (others)
Chevrolet Corvette
Chevrolet Impala
Chevrolet Camaro
Full/Mid Size Trucks
Full Size SUV
Chevrolet Equinox
Chevrolet Traverse
GMC Acadia
GMC Terrain
FIG 1
PAC-Audio.com
LED 1
LED 2
Subwoofer Output
No Function
4
Tuner Module Location
Tuner Module Location
Back Passenger Sidewall of Trunk
Above Passenger Kick Panel
Passenger Footwell on Firewall
Above Passenger Kick Panel
Behind Radio Display
Behind Radio Display, Lower Dash
Behind Glove Box-
By Passenger Kick Panel
Factory Radio Tuner Module
Rev: V1
Date: 091120
Page 2
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