Installation:

1: Install this mod:
https://www.gta5-mods.com/vehicles/brute-dashound-mapped-add-on-replace-liveries 

2: Extract the "coach_sign_18.dds" file

3: Using OpenIV with Edit Mode enabled, add it to "E:\SteamLibrary\steamapps\common\Grand Theft Auto V\mods\update\x64\dlcpacks\coach\dlc.rpf\x64\levels\gta5\vehicles\vehicles.rpf\coach2.ytd"