Test Operation:
1. Turn ignition and radio “ON”
2. Press “BAND” button until XM1 or XM2 is displayed
3. Connect audio device to 3.5mm jack using included 3 ft. audio cable or
similar (See Fig. 6)
4. Put audio device in play mode and ensure volume is at 80% or higher
Fig. 6
3.5mm Male audio cable
5. Use radio volume control button to set playback level. If distortion is
heard lower volume on audio device.
6. To listen to XM simply disconnect 3.5mm audio cable at the jack and
operate XM as customary
7. If correct operation is confirmed go ahead and reinstall Panels
surrounding the XM tuner.
Alert: Audio plug must be removed from cable (jack must be empty)
otherwise XM playback is impaired.
Frequent asked questions
1. Does the AUX-GM3x work in all GM Class-II vehicles?
YES; so long vehicle has an XM Tuner module with or without subscription.
2. Will I be able to use smartphone speakerphone feature?
Use smartphone speakerphone mode to hear callers voice on car speaker.
This feature is limited by smartphone not this cable.
3. My vehicle does not have an XM Tuner, how can I connect/play my
portable device?
If vehicle does not have XM tuner purchase our PXDXGM3
4. Which cable length should I select from options?
Measure distance between XM module and location where you intend to
place 1/8” audio jack and select from available options.
5. What’s the difference between Expired and Active and which to I
select?
Expired subscription and
NO intentions
to renew, purchase “Expired”
Expired subscription and intent on renewing at future time, purchase
“Active”
Important: Expired version will not allow XM playback at any time,
therefore to retain XM playback (now or in the future), purchase “Active”
version.
6. I don’t know if vehicle has XM Tuner. How can I find out without ripping
car apart?
Turn radio “ON”, press “BAND” button repeatedly as radio cycles through
AM/FM/XM1/XM2. If only AM/FM is displayed, vehicle does not have
required XM tuner.
7. My factory radio has a “BAND”button but no XM tuner. Will this work?
NO; For the AUX-GM3x to work, vehicle must have an XM tuner module.
8. Do you offer a wireless music streaming option for my GM with XM
Tuner?
YES, See our A2D-GM3x
9. After connecting everything, playback is noisy/humming. Any ideas?
Ensure audio device volume is set to 80% or more. When listening to XM (if
subscribed) ensure jack is empty.
