[dapharsyde]

I am building a car pc which uses the steering wheel inputs for navigation. I rarely ever use the voice control feature of my car, so I was hoping to disable it so I could map this steering wheel button to my car pc instead.

Unfortunately, I have not had much success in doing so. I have already done the following:

1 - using NCS Expert, I've deleted VO $620 from the CAS and FRM and NFRM ECU modules
2 - using NCS Expert, I've set "SVS" to "nicht_aktiv" in the CAPPL module

Everything I've found on the net is instructions to do the opposite, adding this feature to the car - and most people get stuck with needing the FSC code to enable the feature. It appears my car already has this FSC code - is it possible for me to extract my FSC code for safe keeping (in case I ever want to re-enable voice control) and then overwrite(?) it with an "invalid" FSC code to temporarily disable my voice control?

Can someone suggest another safe-ish option for me to temporarily disable this feature in my car?

I have a 4/2006 production date E90...