Locate your mod folder:My Documents → Euro Truck Simulator 2 → ModCopy and paste (or drag and drop) all provided .scs files into this folder.
Load Order (Recommended)For best performance, load the files in the following order:
EDIT.scs (optional)MAIN BUS.scsACTIVATOR.scs
Accessing the Mod In-GameNavigate to:Menu → Services → Dealerships → Mod Dealerships
Ensure the mod is enabled in the Mod Manager before launching your profile.

Credits:
karvlog