No Sound in the Opel Manta B400 Mod

Hi all, I have a little problem with the Mod Opel Manta B400 by Speedster63 : there is no "Sounds" file in the GameData.
In the ".car"  i found the "Manta_400.AUD" file;
What can I do to have sound?
Thank you for your answers   and excuse my bad English.

Appears you've overlooked downloading the Opel B400 sound mod for the Manta.

Go back to speedster's blog and check the Manta mod info for that sound file. I have sounds for both the Opel Ascona and the Opel B400 mods in my 'Sounds' folder (speedster63_sounds).

...and your English is nearly better than mine...and I'm an American citizen, born and bred! 

Many thanks for your answer, but where can i find the Speedster's blog ???

  Dan42, here you have it:
http://speedster63.blogspot.de
Enjoy!!  

Many thanks