Installation instructions

99-2022

Interface Installation

12-Pin Harness

1. Plug the 12-pin harness into the ASWC interface box.

2. Plug 3.5 mm into aftermarket radio.

3. Tap Volume Up continuously until LED stops flashing rapidly on first initialization

of ASWC to program.

Note: Please refer to the www.axxessinterface.com for custom

button remapping instructions.

Testing the Interface

1. Turn the ignition on, and then turn the aftermarket radio on.

2. Push the Onstar button, the radio should turn off and you should hear Onstar.

Push the Onstar cancel button and the radio should come back on.

Personalization Menu

Note: Vehicle must have steering wheel controls from the factory

1. Turn off your aftermarket radio.

2. Press and hold off hook for 3 seconds. After 3 seconds the personalization menu will

show up on the display.

3. To scroll through the menu’s use seek up and down

4. To make a selection, use the Source button which is the center button between

seek up and down.

5. Use off hook to exit the personalization menu

Note: Personalization menu can be set before the factory radio is removed.