Expert Verdict (2026) - Why Buy?
The GROM MBB3 is purpose-built for 1994-1998 Mercedes-Benz vehicles with a CDC-capable factory stereo — including the C-Class, E-Class, S-Class, and SL-Class. It's the right pick for classic-era Mercedes owners who want modern Bluetooth calling and streaming without touching the factory dash or losing the original stereo's look and feel.
Quick facts: GROM-BT3-MB · Compatible with select Mercedes-Benz C220, C36 AMG, C43 AMG, CL500, CL600, CLK320, E300, E320, E420, E430, E500, S320, S600, SL320, SL500, SL600, SLK230 (1994–1998, CDC-capable stereos) · 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 Mercedes-Benz 1994-1998 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 |
| C220 |
1994–1998 |
| C36 AMG |
1995–1997 |
| C43 AMG |
1998 |
| CL500 |
1998 |
| CL600 |
1998 |
| CLK320 |
1998 |
| E300 |
1995–1998 |
| E320 |
1994–1998 |
| E420 |
1994–1997 |
| E430 |
1998 |
| E500 |
1994 |
| S320 |
1994–1998 |
| S600 |
1994–1998 |
| SL320 |
1994–1997 |
| SL500 |
1994–1998 |
| SL600 |
1994–1998 |
| SLK230 |
1998 |
Note: All listed models are CDC (CD changer)-capable stereos, which this kit requires.
