How to install custom steering wheels via CSM?

I have copied all the files in my mod's folder "Grand Prix 4\GPSAVES\Carsets\F1 1998\Data\Cockpit\StWheels" also i set CSM to enable loading custom wheels but ingame i see a single, and the same wheel for all cars, and only in the TV cam/onboard view its visible, in the cockpit nothing changes.

ps: i already asked on https://www.grandprixgames.org/ and the tutorial links are missing there too.