Subzero Sound Automotive Upgrade: Truck/Trailer Add-on

Installation:
1. Copy the folder "subzero" to mods/update/x64/dlcpacks
2. Copy dlcpacks:\subzero\ to mods/update.rpf/data/dlclist.xml
Adding to Vehicles:
Add "subzero" to your vehicles add-on at: dlc.rpf/data/vehicle.meta
Search for "trailers" and add "subzero" on the line below.

Mod authored by: Ekip Dubi PC