I'm not replacing LFS' sound engine with an EAX one, i'm adding environmental sounds with EAX support, so you can drive past a stadium and hear the crowd cheer as it wizzes by. Of course the crowd only cheer when it's worth them cheering, also i've made the tannoy speakers work on various tracks - there's an example toward the end of the video. I'm going to do a few wildlife noises too, but only for the shift-u camera.
It does detect shift-u and that all works fine, non-shift-u cameras are all processed as if in car so the 'tv-cam' isn't too hot atm, I might change that but tbh I dont use it much myself so I may not - it depends what is involved when I look at the issue.
The video is only stereo and I think I have the left & right crossed on it, the volumes are different now too, and are going to change again before release when I make the incar camera a little quiter.
So far I have done 3 tracks, Blackwood, Fern Bay and Westhill - so obviously the system is a fair way from being released still.