Owner's Manual

REV. 2/21/2019 INST99-3030B
11
ADJUSTMENTS
1. Secure the radio assembly to the dash using the factory screws.
2. Reassemble the dash in reverse order of disassembly using the 99-3030 radio trim panel to
complete the installation.
Audio level adjustment:
1. With the vehicle and radio turned on, turn the volume up 3/4 of the way.
2. With a small flat-blade screwdriver, adjust the potentiometer clockwise to raise the audio
level; counterclockwise to lower the audio level.
3. Once at a desired level, audio level adjustment is complete.
Chime level adjustment:
1. With the vehicle on, turn it off and leave the keys in ignition. Open the driver’s door; chimes
will be heard.
2. Wait 10 seconds, and then with a small flat-blade screwdriver, turn the potentiometer
clockwise to raise the chime level; counterclockwise to lower the chime level.
3. When the chime is at a desired level, remove the keys from the ignition. This will lock the
chime volume at its current level.
OnStar level adjustment:
1. Press the OnStar button to activate it.
2. While OnStar is speaking, press the VOLUME-UP or VOLUME-DOWN button on the steering
wheel to raise or lower the OnStar level.
3. If the vehicle doesn’t come equipped with steering wheel controls, locate the Black/Yellow
wire on the 3030 harness.
4. While OnStar is speaking, tap the Black/Yellow wire to ground. Once the OnStar level is set,
it will stay at that level until the Black/Yellow wire is tapped to ground again.
FINAL ASSEMBLY