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Bluetooth Operation 

1.

 

Press “BAND” 

button on radio to enter XM mode or CD/AUX button to 

enter external CD Changer mode

 

2.

 

Use radio volume button to set playback level

 

 

Music Commands 

 

To 

Proceed this way 

Pause a Song 

Press and release button 

Resume Play 

Press and release button 

Skip to next song  

Press button twice 

Skip to Previous Song 

Press button 3 times 

Activate XM/Aux Playback

Press button 4 times 

Activate Voice Control 

Press/hold button for 2 seconds 

Switch out of XM Mode 

Press and release button 

 
 

Phone Commands 

 

To 

Proceed this way 

Answer call 

Press and release button 

End call 

Press and release button 

Reject incoming call  

Press button twice (call goes to VM) 

Cancel outgoing call 

Press button twice 

Activate Voice Control 

Press/hold button for 2 seconds 

 
 

Notes: 

1.

 

If playback is distorted, adjust volume on Bluetooth device.

 

2.

 

To reset Module press and Hold button for 5 seconds 

(this will not 

un-pair phone or erase stored phones) 

3.

 

On incoming calls, ring tone will play on car speakers 

4.

 

Bluetooth range is approximately 30 ft. make sure device is within 
range 

5.

 

Voice command compatible with Apple (Siri), Android (Google Now), 
Blackberry (Assistant) 

6.

 

* Control button will not control XM/Aux functions. Use radio button 
assigned to these functions or aux device built-in control for music 
selection. 

7.

 

Upon ending call, audio streaming resumes playback, however to 
resume XM/AUX control button must be pressed 4 times. 

 

If successful go ahead and Reinstall the Radio 

 
 
 
 

Congratulations, you’ve

 just updated your vehicle to support new technology 

while preserving the original radio and dash components. 
 Enjoy! 

 
 

 

 

 

 

 

 

 

Summary of Contents for GM3x-HF

Page 1: ...reo com Driving without distraction is a necessity for a safer driving experience GM3x HF Quick start Installation Guide for GM Class II Vehicles with XM Tuner or Remote CD Changer Created July 19 201...

Page 2: ...ars Note XM subscription not required for operation however subscribers retain the service If not subscribed the module AUX input can be used to connect and play audio devices such as Mp3 players sate...

Page 3: ...one out Use included 3 5mm male to male cable See Fig 4a to connect your audio device to module XM AUX input jack Fig 4a 3 5mm male to male cable Fig 5 Module 7 Connect shorter 3 5mm plug from install...

Page 4: ...entilation duct is pointed towards the mic It is best to mount button facing driver USB Charging Port Options Should you decide to use it we suggest one of 3 connecting options A Flush to dash panel r...

Page 5: ...See Enabling the AUX section below B USB with Bracket Mount No drilling 1 Locate a flat surface at location of choice within 6 ft of radio to mount USB support bracket See Fig 14 using the adhesive b...

Page 6: ...drilling Secure module and proceed to section next section Bluetooth Pairing and Connection This process is required the first time you use the GM3x HF After initial pairing the GM3x HF will automatic...

Page 7: ...on twice Activate Voice Control Press hold button for 2 seconds Notes 1 If playback is distorted adjust volume on Bluetooth device 2 To reset Module press and Hold button for 5 seconds this will not u...

Page 8: ...n instead of XM CD Changer 7 Where is the best place to install control button mic We found that having the control button mic mounted higher on the dash worked best but users can experiment with diff...

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