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GMC GM3X-HF Quick Start Installation Manual

Gm class ii with xm tuner moduleor remote cd changer
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Courtesy of: DiscountCarStereo.com
Serving the internet community since 1995
Driving without distraction is a necessity for a safer driving experience
GM3X-HF
QUICK START INSTALLATION GUIDE FOR GM CLASS II WITH XM TUNER MODULE OR REMOTE CD CHANGER
Created: November 19, 2016
Revised: April 13, 2022

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Summary of Contents for GMC GM3X-HF

  • Page 1 Courtesy of: DiscountCarStereo.com Serving the internet community since 1995 Driving without distraction is a necessity for a safer driving experience GM3X-HF QUICK START INSTALLATION GUIDE FOR GM CLASS II WITH XM TUNER MODULE OR REMOTE CD CHANGER Created: November 19, 2016...

  • Page 2: Installation

    Connect harness 12-pin plug (See Fig. 3) to radio socket vacated in step 1 recognition application (Siri, Google Now, Blackberry Assistant etc.). Thanks to the GM3x-HF kit you keep the stereo, XM, *remote CD changer or DVD while enjoying Bluetooth features only available on newer cars.
  • Page 3 XM (if subscribed) For module to work in RAP mode we recommend purchasing our TR-4 module 9. The GM3x-HF microphone is built-into the control button. To install; connect control button 3.5mm plug to “MIC” jack on module (See Fig. 5) Fig. 6...
  • Page 4 USB charging port install options Should you decide to use charging port, we suggest one of 3 connecting options: A. Flush to dash/panel requires drilling a ¾” hole in the dash B. Flush with Support bracket (use this option to mount USB terminal wherever your installation demands without drilling) C.
  • Page 5 Fig. 14 Fig. 11 USB mounting bracket Module USB port Insert USB male terminal through bracket (See Fig. 15) and connect to Push USB head (See Fig. 12) in place and snap to surface (See Fig. 13) module USB port (See Fig. 11) Fig.

  • Page 6: Bluetooth Pairing And Connection

    Optional 3.5MM JACK + USB Charing Cable Bluetooth pairing and connection This process is to be performed upon initial install at which the GM3x-HF will automatically reconnect with paired device upon entering vehicle. Turn vehicle ignition to “ON”. Red LED inside module should flash (otherwise check ground and...

  • Page 7: Bluetooth Operation

    Voice command compatible with Apple (Siri), Android (Google Now), Bluetooth operation Blackberry (Assistant) * Control button will not control XM/Aux/CD changer/DVD functions. Press “BAND” button on radio to enter XM mode or CD/AUX button to Use radio button assigned to these functions or aux device built-in enter external CD changer or DVD mode control for music selection.

  • Page 8: Frequently Asked Questions And Troubleshooting

    Volume button on radio can be used to set playback level. What do I need for the GM3x-HF to work in my vehicle? For the GM3x-Hf to work, your vehicle must have at least one of the following factory options: XM module (With or without subscription),...