WS49X Detroit DD13-15-16 engine MegaPack 3.2

The SCS WS49X is a very good truck. Quality is excellent. I’ve recorded few months ago a Mercedes engine (OM471), and this same engine is used in the US rebadged as a DD13-15 series. I decided to make it working with this truck.
I added this new DD sound in my megapack, i’ve also fixed an error on the Cummins 444, it was keeping playing in the game menu.
Credits: Kriechbaum, Semi Truck Doctor, SCS