GWX 2.0 does this and a lot more, check out their Web Site:
http://gwx.mysite.orange.co.uk/
As well there have been mods done by Reece and Racerboy,
check the threads to see their compatibility with various versions of SH3. Also the
search option can be your friend when wanting information, answers to your questions may be in older threads.
Just a few suggestions. Welcome to SUBSIM
RDP