Um, I'm pretty sure the only bus the radio talks on is the IBUS, and coding the headlights uses the KBUS if I remember correctly. They are bullshitting you. Request refund.
E46 323i Sport/5 speed/TiAg | 242k miles
E85 Z4 3.0i Sport/6 speed/Toledo Blue | 96k miles
E39 530i M-Sport/5 speed/Topaz Blue | 221k miles
Dynavin Android | Laser Interceptor | GRE PSR-800 | STi-R+ | M3 seats | 50W 4300K FX-R Retrofit | Solid black interior | Mtech II front bumper | Koni FSDs
Member, Three Pedal Mafia | Long informative article on oil | BITOG German Castrol FAQ