Expert Verdict (2026) - Why Buy?
For 1997-2006 BMW and Mini owners without factory Navigation or DSP, the GROM BMWSB3 delivers hands-free calling and A2DP music streaming while preserving the OEM stereo and steering wheel controls. Installed behind the radio, it's the simpler of the two BMW mounting options — ideal for daily drivers where trunk access isn't practical.
Quick facts: GROM-BT3-BMWS · Compatible with select BMW 3/5/7 Series, M3, M5, X3, X5, Z3, Z4, Z8, and Mini Cooper (1997–2010, no Nav or DSP) · Behind-the-radio install · Hands-free calling (HFP) and wireless streaming (A2DP) · 1-year replacement warranty. Need Nav/DSP support? See our GROM BMWTB3 trunk-mount kit.
Add Bluetooth hands-free calling and wireless music streaming to your factory car stereo with the GROM-BT3 integrated Bluetooth adapter.
Compatible with: Select BMW / Mini 1998-2006 factory stereos — behind the radio install.
- Hands-free calling (HFP)
- Wireless music streaming (A2DP) from any smartphone
- Steering wheel and stereo control compatible
- Includes: GROM-BT3 module, vehicle-specific data harness, microphone, installation manual
AUX-In cable sold separately.
Vehicle Compatibility
| Model |
Years |
Notes |
| 3 Series |
1999–2005 |
No Nav or DSP |
| 3 Series Coupe/Convertible |
2006 |
No Nav or DSP |
| 5 Series |
1997–2003 |
No Nav or DSP |
| 7 Series |
1999–2001 |
No Nav or DSP |
| M Coupe / M Roadster |
1999–2002 |
No Nav or DSP |
| M3 |
1997–2006 |
No Nav or DSP |
| M5 |
2000–2003 |
No Nav or DSP |
| X3 |
2004–2010 |
No Nav or DSP* |
| X5 |
2000–2006 |
No Nav or DSP |
| Z3 |
1997–2002 |
No Nav or DSP |
| Z4 |
2003–2008 |
No Nav or DSP* |
| Z8 |
2000–2003 |
No Nav or DSP |
| Mini Cooper |
2002–2005 |
— |
| Mini Cooper Convertible (R52/R53) |
2004–2008 |
— |
Notes: *BMW X3 (E83, 09/05+) and Z4 (E85/E86, 02/06+ or 05/06+) with DSP navigation, CD changer, and iPod connection require dealer stereo reprogramming ("vehicle order") for audio to work. For vehicles with SiriusXM, the XM radio must be disconnected. BMW CD43 stereo is not compatible. Need the trunk-install version instead? See our BMW/Mini Trunk kit.
