Here are some resources that you might find interesting, keep in mind that both Discord and the Search Option are important features of RAGE that you can use to find most "FAQs" answered by other community members:
[TUTORIAL] How to add .ymaps into your server (client-sided stable mapping!)
How to Affix Vehicle Addon Mods
Also, worth mentioning that this might not work for the version you're currently looking (or they might you know the drill, they're reference material). I'm positive the How to Affix Vehicle Addons Mods thread should still be working.
Also.. worth mentioning (x2) that i'm merely another bystander and have zero to none experience with RAGE itself (Still learning my way around) so any Technical questions might be better for RAGE's Discord (or even Stuyk's Discord, you can search that if you are smart enough).
