Originally Posted by woodpecka
I tried to add $6nn, $6fl, $644, $620 to the VO,
FA_Write the CAS and FRM,
Process CAR / Code CAR (2 times)
SG_Reset or coding the 2URAD
This is wrong! Remove $644 from your VO. This is only for cars with UFL or MULF not for HU with Bluetooth built-in
I always use SG-Codieren instead of SG-Reset.
As you said, if you reset the ECU according to your VO, the HU should work properly with your equipment. This mean that the HU will lower its outputs adapting it to the HiFi system.
Furthermore, the equalizers will be adapted to your model (e90, e91, e92, e87...) because each car has its own settings.