This has been asked a few times & answered (by me) on the previous page, please learn to read a bit before asking. The download is available in the discord server.
Don't know if you resolved this, but would AngeTheGreat's Engine Sim work for simulating proper sounds for any new addon engines, and possibly new mods?
Just a little progress update. Got some new lights to replace the re-used BeamNG ones. Added lights to two pushbars. Also got Chrome Spotlights added Got two new colorable liveries as well. Revised the LX Cluster. Another skin based off of the Cyberpunk 2077 Police Cars. Ignition Off is no words. Ignition on/running is Blue words. Emergency lights on is red words. Made the blue Liberty all blue Two skins added to the H and D Series. These are included because.... They go with the Rochester livery for the Vic as it is their hospital. Headlight colors revised a little. A colorable FlyUs skins. "Also showing that the colored lights are available with the beacons now."
So I thought maybe it's not worth making colored skins that don't change color, or you know like a role-playing skin for cherries, the flag of France doesn't change color