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Products > USB Interfaces > GROM-USB2-GM

GMC / Buick / Saturn / Chevrolet GROM USB/iPod interface adapter(GROM-USB2-GM)

Most GM vehicles 06+ supported
24 bit GMLAN interface
Text supported for all GM vehicles
Factory SAT will have to be disconnected !

129.99 USD 
Car make/model/year:
Add Grom Bluetooth Dongle + $49.99
AUX MiniDin to 3.5mm audio cable, 6FT + $9.75
2GB USB stick (free) FREE

Product details

USB Connection: GROM-USB car stereo adapter connects your USB 2.0 device such as flash drive, external hard drive or mass storage device to the stock stereo in your car. With GROM-USB you can listen to your digital music library and control the playback through your car stereo controls.

Bluetooth: Use your phone in the car hands free (HFP), stream your MP3 music from your phone to the factory stereo via Bluetooth Audio playback (A2DP), control your MP3 music with the car stereo or steering wheel controls via Bluetooth wireless audio control (AVRCP) with the GROM Bluetooth Dongle

AUX Input: Aux connection (for any additional audio source such as DVD, MP3 player, XM and more) via GROM AUX MiniDin to 3.5mm audio cable, 6FT.

Operation of USB is simple:
  • Transfer your MP3/WMA/iTunes (AAC) files to USB stick/disk/drive
  • Connect GROM-USB car kit to your car stereo via CD changer port
  • Connect USB male to female cable to GROM
  • Plug-in USB disk / stick / drive into GROM

Now your stereo:
  • Converted USB disk into virtual CD changer
  • Plays MP3 / WMA / iTunes (AAC) files
  • Browse your music files via car stereo buttons (check Operation Manual)
  • Navigates through directories and map them to the disc buttons on your car stereo or steering wheel controls
  • Plays higher than CD quality (18 bits) sound directly to your car stereo
  • Provides additional AUX input via RCA and 3.5mm cable (you will need to get GROM MiniDin to 3.5mm audio cable for that)
  • Provides additional iPod/iPhone interface with full control and charge with GROM IPOD 5V cable for USB
  • Provides Bluetooth hands free and wireless music playback from your mobile phone with the additional GROM Bluetooth Dongle

Note: Since there is only one EXT port on the GROM USB adapter box you may only have one of two - Bluetooth or AUX cable - connected at a time.

Main characteristics:
  • Built-in high quality (18 bits,low noise) MP3 / WMA Decoder
  • Supports USB Stick / flash drive / mass storage device
  • FAT 16/32 system supported
  • Higher than CD quality sound of your MP3 files with level-matching technology
  • Full control over the music via steering wheel or car stereo controls
  • Maps discs to root folders
  • Shuffle, scan, repeat through your MP3/WMA files
  • Additional audio MiniDin to 3.5mm cableto connect any MP3/Audio player
  • Bluetooth handsfree and wireless music playback from your mobile phone via GROM Bluetooth Dongle
  • Playlist positions are preserved for several USB sticks
  • For more information on folders, formats, operation and limits- read FAQ
  • Firmware upgradeable, universal interface fits many car makes

Technical specs:
  • Operating temperature: -40C - +85C (-50F - +200F)
  • Operational current: ~150mA
  • Standby current: ~2mA
  • SN Ratio: 70dB
  • DAC resolution: 18bit
  • Total harmonic distortion: 0.1%

Important:Please carefully check the compatibility list for your vehicle. You can also check the CD changer port at the back of your stereo and compare it to the following chart

Product advantages

Before ordering please check our compatibility guide to make sure that your vehicle is compatible.
Make sure to disconnect factory SAT tuner in order for GROM to take its functionality. If you plan to preserve SAT, please contact us first before ordering !


Buick Enclave 08-11
Buick Lucerne 06-11
Cadillac DTS 06-11
Cadillac Escalade 07-11
Cadillac SRX 07-09
Chevrolet Avalanche 07-11 (not USB ready radio)
Chevrolet Equinox 07-09 (not USB ready radio)
Chevrolet Express 09-11 (not USB ready radio)
Chevrolet Impala 07-11 (not USB ready radio)
Chevrolet Monte Carlo 06-07
Chevrolet Silverado 07-11 (not USB ready radio)
Chevrolet Suburban 07-11 (not USB ready radio)
Chevrolet Tahoe 07-11 (not USB ready radio)
Chevrolet Traverse 09-11 (not USB ready radio)
GMC Acadia 07-11 (not USB ready radio)
GMC Savana 08-11 (not USB ready radio)
GMC Sierra 07-11 (not USB ready radio)
GMC Yukon 07-11 (not USB ready radio)
GMC Yukon Denali 07-09
GMC Yukon XL 07-09
Pontiac Torrent 07-09
Saturn Outlook 07-10
Saturn Vue 08-10

Package contents

- Car stereo adapter in metal enclosure
- OEM compatible harness to connect to the back of the car stereo
- USB Type A Male / Type A Female 6FT cable
- Operation manual
If you need Bluetooth handsfree and wireless playback functionality - please check the box near GROM Bluetooth Dongle and add it to your cart.

If you need AUX 3.5mm input for any audio source - please check the box near AUX MiniDin to 3.5mm audio cable, 5FT and add it to your cart.



- 30 days money back guarantee
- 1 yr replacement warranty


We ship within US and internationally. For rates and delivery times please see this chart

Return Policy

30 days money back guarantee
All returned items should be requested on Support page
Without RMA we will not accept returns !
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GROM iPod car adapter User's Manual
GROM AUX car adapter User's Manual
GROM USB Usage Manual
GROM Compatibility Guide
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