You can find the latest versions on the Steam Workshop or community mod sites like ETS2.lt. If you're having trouble getting the lights to turn on, Interior Light & Emblems Part 1 - Steam Community
: When selecting a rear panel emblem in the shop, a new slot appears in the top-left corner of the customization menu to choose your preferred lighting color. Recommended Add-ons
: Interior lights are typically linked to the headlight switch ; turning on low beams activates the cabin glow.
The community often uses specific "add-ons" to change how the lights are toggled:
