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CRUX BTGM-33 Bluetooth® Interface

Talk hands-free and stream music through the factory radio in select GM vehicles

Item # 249BTGM33

Crux's BTGM-33 Bluetooth interface expands the functionality of your factory system without replacing the radio.

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Crux's BTGM-33 Bluetooth interface expands the functionality of your factory system without replacing the radio.

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Item # 249BTGM33

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About the CRUX BTGM-33 Bluetooth® Interface

Bring aftermarket features to your factory radio

Crux's BTGM-33 Bluetooth interface expands the functionality of your factory system without replacing the radio. Connect this interface to your existing radio, and you'll enjoy the convenience of hands-free calling and audio streaming with your Bluetooth-equipped phone. You'll use your existing steering wheel controls to control calls and music, so you can keep both hands on the wheel and drive like a smart person.

Bring aftermarket features to your factory radio

Crux's BTGM-33 Bluetooth interface expands the functionality of your factory system without replacing the radio. Connect this interface to your existing radio, and you'll enjoy the convenience of hands-free calling and audio streaming with your Bluetooth-equipped phone. You'll use your existing steering wheel controls to control calls and music, so you can keep both hands on the wheel and drive like a smart person.

Callers will hear you clearly

Install the included external microphone in a good spot for the best reception, such as near your visor or on top of the steering wheel column. You can also adjust the microphone volume so your callers can hear you clearly.

Cool music without uncool wires

In between calls, you'll need something to occupy yourself, so why not enjoy some music? The Crux BTGM-33 interface lets you listen to your favorite music wirelessly from your compatible phone via Bluetooth. Unlike older Bluetooth adapters, this Crux adapter will send sound to your front and rear speakers. When you get a call, your music will be muted so you can hear your caller on your speakers.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this interface is compatible with your vehicle.

Important Note:  This adapter is not compatible with a factory radio with a built-in XM radio tuner. The XM tuner must be separate.

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Product highlights:

  • add Bluetooth to your GM vehicle's factory radio
  • enjoy music streaming and hands-free calling
  • add voice activation with compatible device
  • includes microphone and magnetic phone mount
  • retains OnStar (if present)
  • compatible with factory XM radio (if equipped)
  • active echo and noise cancellation technology
  • compatible with Apple and Android Bluetooth devices
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # BTGM-33

What's in the box:

  • Bluetooth interface adapter
  • Plug-and-Play harness (pre-installed)
  • Microphone (attached 13' cable terminated by a proprietary connector)
  • Visor bracket (pre-installed on mic)
  • Vent mount with magnetic cradle
  • Magnetic plate
  • Self-adhesive magnetic plate
  • Self-adhesive tape
  • Instructions

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CRUX BTGM-33 Bluetooth® Interface reviews

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More details on the CRUX BTGM-33 Bluetooth® Interface

Stacey B.
The CRUX BTGM-33 Bluetooth® Interface replaces these items:

Product Research

Features

Add-On Bluetooth Interface Adapter: The Crux BeeLine series BTGM-33 allows you to add Bluetooth hands-free communication and wireless audio streaming to the factory radio of select GM vehicles. The BTGM-33 add-on Bluetooth interface installs behind the factory radio using the included T-harness.

Vehicle Compatibility: The BTGM-33 is compatible with the following 2006 to 2013 GM LAN 29-bit vehicles.

Make Model Year
Buick Enclave 2008-2012
Lucerne 2008-2011
Cadillac
Escalade 2007-2013
SRX 2007-2009
Chevrolet Avalanche 2007-2013
Equinox 2007-2008
Express Van 2009-2011
Impala 2006-2013
Monte Carlo 2006-2007
Silverado 2007-2013
Suburban 2007-2013
Tahoe 2007-2013
Traverse 2009-2012
GMC Acadia 2007-2013
Savana 2008-2011
Sierra 2007-2013
Yukon 2007-2013
Hummer H2 2008-2009
Pontiac Torrent 2007-2009
Saturn Outlook 2007-2009
Vue 2008-2009

Note: To be compatible, the factory radio must have XM Radio selectable as a source, but the XM Radio tuner cannot be built into the radio. (If included, the XM Radio tuner must be a separate component from the radio.) The BTGM-33 uses the XM input in the radio's wiring harness to integrate your phone. The XM Radio source will also be retained.

Bluetooth 2.0: Thanks to built-in Bluetooth 2.0 with support for HFP and A2DP/AVRCP, you can enjoy hands-free communication and wireless audio streaming from your Bluetooth-enabled smartphone through your vehicle's factory radio and steering wheel controls. The BTGM-33 supports multi-device pairing, but only one device can be connected for calls and playback at a time. The BTGM-33 also allows any previously paired smartphone to automatically re-connect to the add-on Bluetooth interface inside your vehicle.

  • Hands-Free Communication: The Crux BTGM-33 adds Bluetooth hands-free communication to your vehicle's factory radio with DSP and Echo-Cancellation for clear conversations on both sides of the phone call. Using your vehicle's steering wheel controls (if equipped), you can answer and end your Bluetooth-enabled smartphone's calls. You will still need to use your smartphone to make phone calls and to view caller ID information. An external wired microphone is included to carry on your side of the conversation, while the other party is heard through your vehicle's front speakers. The BTGM-33 will automatically mute any source as soon as a call is received, and resumes when a call is ended.
  • Wireless Audio Streaming: The BTGM-33 adds 4-channel Bluetooth audio streaming to your vehicle's factory radio. You'll be able to wirelessly stream stored music, music apps, and other audio content (such as Navigation apps) from your Bluetooth-enabled smartphone to the add-on Bluetooth interface and your vehicle's factory radio. You can operate Play/Pause and Previous/Next Track functions from your vehicle's steering wheel controls (if equipped). Advanced music browsing and song/artist/album information will still need to be done from your Bluetooth-enabled smartphone. The BTGM-33 supports the standard SBC codec for Bluetooth (not compatible with aptX or AAC). The BTGM-33 will automatically pauses Bluetooth audio streaming when a hands-free call is received and will resume when the call is ended.
Note: The Crux BTGM-33 will use your vehicle's XM source function to access the add-on Bluetooth interface as a source. Your vehicle's steering wheel controls will toggle between XM radio and Bluetooth by pressing and holding the Source button.

Retained Factory Features: The Crux BeeLine series BTGM-33 will retain your vehicles OnStar functionality and factory XM radio, if equipped. To be compatible, the factory radio must have XM Radio selectable as a source, but the XM Radio tuner cannot be built into the radio. (If included, the XM Radio tuner must be a separate component from the radio.) The BTGM-33 uses the XM input in the radio's wiring harness to integrate your phone. The XM Radio source will also be retained.

Magnetic Vent Mount: The Crux BTGM-33 comes with a magnetic vent mount for your smartphone. The mount works with most air vent configurations found in today's vehicle's - including horizontal, vertical, and round air vents. The vent mount includes a magnetic device cradle and comes with a self-adhesive magnetic plate which attaches to the outside of your smartphone or inside of your smartphone case. Once the magnetic plate is installed, simply hover your mobile device over the cradle and it will quickly snap into place and remain there. You can quickly remove it too. The mount's ball-and-socket mechanism allows you tilt your smartphone up or down, turn it left or right, and rotate it 360-degrees. You'll be able to mount your device in a vertical (portrait) or horizontal (landscape) orientation.

USB Port: A Mini-B USB port is located inside the casing. This port is provided for uploading firmware updates to the adapter.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
I have one but it failed. So I am buying a new one. [ Eric  Oct 01, 2019 ]
A
plug and play to ease installation [ Micha  Sep 13, 2019 ]
A
To modernize factory unit [ Richard  Jun 09, 2019 ]
A
All in one Phone and Bluetooth Function [ JONATHAN  May 16, 2019 ]
A
My son just bought this car. He wants to stream his iphone. I wanted hands-free calling for safety. [ D  Dec 17, 2018 ]
A
Have purchased several other Crux products in the past. Never had any problems with them. [ K  Oct 25, 2018 ]
A
Needed a Bluetooth adapter that was capable of proper integration with navigation and onstar. [ James  Oct 11, 2018 ]
A
add blue tooth to factory radio [ walter  Oct 07, 2018 ]
A
Had good reviews and the lowest price [ steven  Sep 26, 2018 ]
A
very good service and the staff offer great help [ Homer  Sep 05, 2018 ]
A
Fits my vehicle [ Richard  Aug 28, 2018 ]
A
I need Bluetooth in my Tahoe and didn't want to have to buy a new radio and after chatting with your tech I feel this is best way to go [ Sammy  Aug 16, 2018 ]
A
Based on the reviews and details describing how easy the system works with the factory stereo. [ Nikolas  Aug 16, 2018 ]
A
Easy instalation [ Daniel  Aug 07, 2018 ]
A
In stock and let's me keep the factory look. [ Steven  Jul 19, 2018 ]
A
Fits my truck [ JAMES  Jun 30, 2018 ]
A
Need hands free calling in Rhode Island [ Brett  Jun 29, 2018 ]
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8 questions already asked

Q
Will this work with a trailblazer?
[ GMupgrade  Aug 27, 2019 ]
2 answers
A
It should
[ walker  Aug 27, 2019 ]
A
I use it in my 08 Chevy Silverado
[ Thomas  Aug 27, 2019 ]
Q
Will it be able to use existing microphone?
[ Cumminsz28  Jan 30, 2019 ]
5 answers
A
No. Microphone that comes with unit only.
[ James  Jan 31, 2019 ]
A
It has a flat 2 wire plug that looks to be proprietary to this device. Not a round one like a phone jack. Hope this helps.
[ Dave  Jan 31, 2019 ]
A
I don't believe so because the microphone that the unit comes with plugs into the device. The factory one does not have the same plug. The sound quality is exceptional from this unit
[ JOE  Jan 31, 2019 ]
A
No but it comes with a good microphone
[ Marlow  Jan 31, 2019 ]
A
You will have to install the microphone supplied with the new stereo.
[ mark  Jan 31, 2019 ]
Q
I currently have phone only bluetooth in my 2009 avalanche, will this work with factory mic and steering wheel controls? Also have factory navigation
[ Gary  Jan 06, 2019 ]
6 answers
A
Have a qualified Tech installed the device otherwise you will run into problems
[ Christopher  Jan 26, 2019 ]
A
I installed it in my 2008 avalanche with navigation and had no issues.
[ ROBBIE  Jan 06, 2019 ]
A
Gary, steering wheel controls work for track up/down with phone music player and steering volume controls work. Mine is installed in 2008 SRX which doesn't have a couple of the buttons I've seen on GMCs, so I think you have a little more functionality (toggle Bluetooth connect on/off) from the wheel. You can also answer calls from steering wheel buttons and mute audio. The built-in ONSTAR mic is not functional with Bluetooth calling - there is a separate mic connected to the Crux adapter that you can locate wherever you like. All sound plays through existing speakers.
[ Mark  Jan 06, 2019 ]
A
Yes there is a wire you will connect from your factory harness that shows mic
[ walker  Jan 06, 2019 ]
A
I installed in a 2008 equinox with XM only. It integrated with the steering wheel controls. However the interface is quirky and takes some practice to master while driving. It does work with the phone and streaming from an iPhone 8 and XS. I can't say if it would work correctly since you already have BT , it may work if you can disable it. The cabling was easy plug and play so nothing needs to be cut so you could do a test install but I would make sure it can be return if it doesn't work. I know this isn't the answer you were looking for but I hope it helps some.
[ John  Jan 06, 2019 ]
A
Gary yes it will. I've had it in my 09 Escalade for about 4 months now and it is amazing. If you have any more questions please contact me and I'll respond immediately
[ Martell  Jan 06, 2019 ]
Q
I have a 2007 Corvette. No bluetooth, or aux input. I do not have anything on the steering wheel to answer phone. What do I need?
[ Lonnie  Dec 28, 2018 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Krissy  Jan 07, 2019 ]  Staff
Q
Can more than one phone be paired? For example my wife's phone and mine. Even if we are in the vehicle at the same time.
[ Thomas  Nov 18, 2018 ]
3 answers
A
Yes up to 3
[ walker  Nov 18, 2018 ]
A
I'd refrain from connecting 2 phones. The system worked great when only my phone was connected but as soon as a friend connected his phone it acted like my phone was no longer in its memory. So to fix this I had to "forget" the Bluetooth device on both devices and reconnect from scratch. Hope this helps!
[ Daniel  Nov 18, 2018 ]
A
Yes
[ Ricky  Nov 18, 2018 ]
Q
1. I don't have XM radio in my car. Will this still work? 2. Will it pair with the phone automatically or will I have to pair it every time I turn the car on? 3. I already have bluetooth for phone calls but not for music streaming though. Will this affect the factory bluetooth? My vehicle is a 2007 Yukon Denali.
[ Sarah  Sep 13, 2018 ]
3 answers
A
It plays through Xm so you have to have Xm built into the radio.
[ Michael  Sep 14, 2018 ]
A
This module didn't effect any of my factory functions and pair automatically with my phone when I start my truck. The only thing I can see you having to do is choose between what device your phone connects too. So when you are pairing make sure you choose the new module.
[ SCOTT  Sep 13, 2018 ]
A
Yes it will work for streaming and as long as the Bluetooth is on , on the device it will automatically connect !
[ walker  Sep 13, 2018 ]
Q
Will this fit my tahoe if I do not have xm on my radio?
[ Thomas  Jul 07, 2018 ]
2 answers
A
It should fit
[ JOE  Jan 31, 2019 ]
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up details on the year & model of your Tahoe to see if the CRUX BTGM-33 adapter will work correctly.
[ Larry  Jul 13, 2018 ]  Staff
Q
By using the XM source, do you lose XM functionality? Or does it use just the XM preview station? I am an XM subscriber and would like to keep that input. Interested for 2011 Chevy Suburban. With Bose and Nav
[ Andy  Jun 26, 2018 ]
2 answers
A
You do not lose your XM functionality works great
[ Marlow  Jan 31, 2019 ]
A
The Crux BeeLine series BTGM-33 will retain your vehicles OnStar functionality and factory XM radio, if equipped. For more details on installation in your '11 Suburban please contact an Advisor directly by phone (888.955.6000) or online chat. Thanks!
[ Larry  Jul 02, 2018 ]  Staff
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