Turn off blue light forza horizon 4 (Xbox one S)?

How to switch off the blue light on Forza Horizon 4? Xbox one S

As I understand this, you can't turn them off: https://www.geekstyleliving.com/gaming/spiele/forza-horizon-4/article/achtung-polizei?lang=de

I quote:

Unfortunately, the signal light system has no influence on the traffic and unfortunately can't be switched off. As soon as it is installed on the vehicle it flashes - until you dismantle it again. The way is identical to the installation.