You know me but you missed the part where I told you that my Gusta would travel with me.. 
Roms, processor life is not an easy life.. I would tell you my story, when almost everyone started telling me that I won't be able to tune it, and I almost lost it either.. It's like doing millions of iterations.. And then you reach something that sounds good..
I would suggest, try sitting in the middle of both driver and passenger seat, then play a well recorded track in WAV or high bitrate, you'd get the idea of what processor would do. The stage would display infront of you, its just an example. Or just keep things simple and enjoy passive setup that you're running at the moment. May be you don't want it.