Here you have a link to the VTC
https://forum.truckersmp.com/index.php?/forum/43-euro-truck-simulator-2-companies/
when it comes to GPS you don't have toworry about it so much, it's up to you how you want to play, whether you want to make the game real or ride faster. Since you are a new member I recommend you to browse the forum where you will find many answers to the initial questions :-)
Latitudes