GROM Audio BMW and Mini Smartphone Music Streaming Kit (GROM-USB3-BMWS BTD)

Control Your Streaming Music from an Android or iOS Smartphone on Select 1997-2010 BMW and Mini Factory Radios

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• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1997-2010 BMW and Mini Stereos
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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GROM Audio

Authorized dealer

General Features:

  • Wireless handsfree calling (accept/reject call)
  • Allows for wireless A2DP playback with AVRCP control
  • USB, iPhone, iPod and Android Smartphone Vehicle Integration kit
  • Compatible with Select 1997-2010 BMW and Mini Vehicles
  • Plugs directly into vehicles harness
  • iPhone, iPod and Android in-car play, charge and control
  • Fully compatible with GROM Audio's Free DashLinQ Android App for Simple and Safe Use of your Android Phone in Driving Mode
  • Two EXT ports for optional AUX-IN and Bluetooth
  • Provides 5V charging via standard USB port
  • Bluetooth Voice (HFP) and Music Streaming (A2DP)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


  • Hands free mode: able to accept call, reject call, adjust microphone gain and audio volume - all using car stereo and steering wheel controls
  • Bluetooth Audio playback: allows you to stream the music directly from your phone to the car stereo. Now you are able to listen to your MP3s or Pandora played from your mobile phone on car stereo
  • Bluetooth wireless audio control (AVRCP): allows you to control music tracks forward and reverse from your Factory Stereo or Steering Wheel Controls. Works with most music applications including Pandora
  • Stream you favorite Internet Music Service via USB with Android 4.1 or greater.
  • Your USB disk or Android phone becomes a virtual CD changer
  • Add a 3.5mm auxiliary connection and 5V charging capabilities with the GROM Audio C-35USB
  • USB Socket accepts any USB stick/drive and supports MP3 / WMA / iTunes (AAC) files
  • The GROM Bluetooh Dongle allows you to use your phone in the car hands free, stream your MP3 music from your phone to the factory stereo via Bluetooth Audio playback, control your MP3 music with the car stereo or steering wheel controls via Bluetooth wireless audio control

Compatible Vehicles:

  • BMW
    • 1999 - 2006 3 Series Coupe1(also include 2006 Coupe/Convertible)
    • 1998 - 2003 5 Series1
    • 1999 - 2001 7 Series 1
    • 1999 - 2002 M Coupe1
    • 1999 - 2002 M Roadster1
    • 1997 - 2005 M3 1(also include 2006 Coupe/Convertible)
    • 2000 - 2003 M51
    • 2004 - 2010 X3 (No Nav)2
    • 2000 - 2006 X5 (No Nav)
    • 1997 - 2002 Z3 1
    • 2003 - 2008 Z412
    • 2000 - 2003 Z81
  • Mini
    • 2002 - 2005 Cooper
    • 2004 - 2008 Cooper Convertible

Vehicle Qualifiers:

1 Not Compatible with DSP or Navigation Radio

All Not Compatible with Navigation Radio.
If Equipped with DSP Radio you will need to purchase GROM Audio C-DSP
All BMW monochrome radios will not allow for TEXT to be displayed.

2Important for 2005+ BMW X3; 2006+ BMW Z4: If your car falls into this range and has Navigation, CD changer or iPod connection, GROM will work without any reprogramming.

The vehicles below do not require GROM DSP adapter (use analog DSP) and can be installed at stereo or trunk, but audio part will not work until the stereo is programmed (retrofited) to accept CD Changer (bmw calls it “vehicle order”). Please contact your local BMW dealer and ask them to retrofit the stereo to accept CD changer:

  • BMW X3 (E83) production date 09/05 and up with DSP without navigation, CD changer and iPod connection
  • BMW Z4 (E85) production date 02/06 and up with DSP without navigation, CD changer and iPod connection
  • BMW Z4 (E86) coupe production date 05/06 and up with DSP without navigation, CD changer and iPod connection

Check out the BMWSU3 Owner's Manual

Specifications & Details

General Features
Type of Factory Radio Improvement Harness
Provides a Charge
Factory Radio Improvement Features
Adds auxiliary input
Adds USB input
Android Smartphone Integration
Bluetooth Integration
iPhone 5 Compatible
iPhone 6 Compatible
iPod/iPhone Integration
Siri Compatible
Number of Device Connections
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


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Internal SKU:


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Customer Ratings & Reviews

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Customer Reviews

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great device

The following review is for BTD, which is a part of the bundle you are viewing.

my brother told me about this device, works as advertised and more...I have it installed on an '05 odyssey and use it for music and hands free phone.

By Ray on September 20, 2014


found this helpful.

BT Dongle works very well

The following review is for BTD, which is a part of the bundle you are viewing.

Anybody who works with BT on a regular basis knows that Apple i-devices can be somewhat finicky. This BT dongle, paired with one of the GROM interface boxes has no such problems. I have tested this with the iPhone4, 4s and 5. Works well, sounds GREAT. Audio quality can also sometimes be an issue streaming BT, but not with the GROM BTD.

By Thomas on July 8, 2013


found this helpful.


The following review is for BTD, which is a part of the bundle you are viewing.

Purchased a GROM Audio BTD. The item was delivered fast and at a reasonable cost

By Andy on September 17, 2013


found this helpful.


The following review is for BTD, which is a part of the bundle you are viewing.

overall, for music and audiobook listening, this is great, for calls, the microphone picks up the other persons voices, causing an echo. I have tried relocating the mic, and also wrapping the end of it, to "direct" it to only receive my voice waves, and i cannot get the echoes to stop.

By who? on October 9, 2013


found this helpful.

easiest bluetooth to install

The following review is for BTD, which is a part of the bundle you are viewing.

This was plug and play. The entire setup plugs right into my factory stereo... Which Honda made difficult to replace. Now I have Bluetooth for safety and streaming music.

By Big Daddy JoeJoe on October 27, 2014


found this helpful.

excellent product

The following review is for BTD, which is a part of the bundle you are viewing.

Works flawlessly with the factory stereo. Excellent sound quality and ability to charge you phone.

By matts extra on August 30, 2015


found this helpful.

Getting Bluetooth and USB on a BMW 323i (E46 Chassis)

The following review is for BMWSU3, which is a part of the bundle you are viewing.

Purchased both the GROM Audio BMWSU3 along with the Bluetooth accessory dongle. Installation in the tight space behind the dash of the BMW 3 series is a bit of a challenge, patience and carefully following along with the many YouTube videos are a must. Once the GROM box and Bluetooth dongle were installed, along with the microphone for the phone, it worked great when I first started the car. However I could not get it to reconnect after restarting, I had to manually delete the Bluetooth entry on the phone and then reconnect to the GROM unit. After contacting GROM about the issue, they quickly determined that the unit needed a firmware update. Kudos to GROM for being so helpful, seeing as how I didn't buy the unit from them. After installing the firmware update through a USB stick, the unit works perfectly, even down to having the phone button on the steering wheel initiating a call. Sound quality on the microphone was excellent - the person I called couldn't tell I was calling handsfree over Bluetooth in the car.

By David on October 17, 2016 checkmarkIcon Verified purchase


found this helpful.

Junk. Avoid this at all costs, because it doesn't work.

The following review is for BTD, which is a part of the bundle you are viewing.

The item works if you turn the key to the accessory position, but once you start the car, its cuts out, will not transmit any more sound into the radio, and will not recognize calls made on your phone, even though it shows that its still connected. Firmware updates from Grom didn't help it either, and it just leaves you with a large bundle of wires that get in the way. The microphone is also ridiculously large, and if mounted behind the steering wheel, it just gets in the way of the gauges. Do yourself a favor and just get the USB module and use an ipod or something, because this is just a frustrating mess with WAY too much wiring to deal with. I ended up cutting it out of the car because I didn't want to have to rip the dashboard apart to get it out, so returning it is out of the question as well.

By Marshall on March 9, 2023 checkmarkIcon Verified purchase


found this helpful.


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