Release Renault Magnum DX sound by Leen

The basic of this sound is made by Kriechbaum and I reworked earlier to a Volvo FH sound, 

but even the Magnum uses the same Volvo engines, so with a good 

research to a desent Magnum sound I reworked again to it. 

New changelog 01-02-2019 (thanks to pigbrother)

- change volume start engine

- changed the 1000rpm sound file because it was the wrong file.

 

Here it is a realistic Renault Magnum sound for you the community, my soundmod 

have always a dropbox download link, if not it’s not original or stolen and re-uploaded.