BTW if you're into editing of mods, you can get Kriechbaum's ATS engines pack 3.4 with recorded Cummins X15 engine sound and add that truck bank as exhaust bank for scanias engine to get that "open pipe" (tower pipe) sound, makes me goosebump in combo with D13K sound

For every body (and def file) you need to add your cargo body type in .sii files. You can find cargo body type prerequisite in cargo .sii (.sui) files. Please, do share your modifications

Search on youtube for Capitan Kriechbaums profile, he's making high quality sound mods

If you have the mod and the sound, you can make it yourself )

It's not a big deal to switch from ats to ets so vice versa should work as well.

edit

If you need help, contact me via pm, but you do need to know how to use notepad.