Expert Verdict (2026) - Why Buy?
For 2002-2008 Mazda owners, the GROM MAZB3 unlocks Bluetooth hands-free calling and A2DP streaming through either CDC or SAT emulation, covering everything from the Mazda3 and MX-5 Miata to the CX-7 and CX-9. Choose CDC mode to keep full steering wheel control, or SAT mode for on-screen track/artist text and caller ID — and remember any subscribed factory satellite radio must be disconnected first.
Quick facts: GROM-BT3-MAZ · Compatible with select Mazda 3/5/6, Miata/MX-5, MPV, Protege, RX-8, Tribute, BT-50, CX-7, CX-9, and B-Series (2002–2008) · Hands-free calling (HFP) and wireless streaming (A2DP) · 1-year replacement warranty.
Add Bluetooth hands-free calling and wireless music streaming to your factory car stereo with the GROM-BT3 integrated Bluetooth adapter.
Compatible with: Select Mazda 2002-2008 factory stereos.
- 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 |
| Mazda 3 |
2003–2008 |
— |
| Mazda 5 |
2005–2008 |
— |
| Mazda 6 |
2003–2008 |
2003-2005 may require a radio modification |
| Mazda Miata / MX-5 |
2002–2008 |
— |
| Mazda MPV |
2002–2008 |
— |
| Mazda Protege |
2002–2003 |
— |
| Mazda RX-8 |
2004–2008 |
Requires radio firmware v9.55+ (v10.01 and v9.81 not supported) |
| Mazda Tribute |
2002–2006 |
— |
| Mazda BT-50 |
2006–2008 |
— |
| Mazda CX-7 |
2007–2008 |
No navigation |
| Mazda CX-9 |
2007–2008 |
No navigation |
| Mazda B-Series |
2003–2008 |
No navigation |
Note: If your vehicle has a factory Satellite radio (subscribed), it must be disconnected for this adapter to work. This kit runs in either CDC (CD Changer) or SAT emulation mode — CDC mode keeps steering wheel controls active, SAT mode shows track/artist text and caller ID but disables steering wheel controls.
