Why do Some of my Modded Cars Have No Sound When in 3rd Person?

[MrDeluxe1]

Hello all,
Some of my modded cars only have sound when I am in the cockpit. Does anyone know why this is happening?

Thanks!

 

[Majuh]

The mods are outdated and need to be updated by the modder.

 

[Epistolarius]

Info from official side:
http://www.assettocorsa.net/forum/i...rsche-pack-1-and-season-pass-available.38028/
http://www.assettocorsa.net/forum/index.php?threads/fmod-official-project-v1-9.37827/