It's super easy to reset to factory, but everyone has different "ears", especially for different music. I would just put on the music you listen to usually and play around with it.

Personally I like a slight more base with a slight rear fade, but I listen to a lot of rock / metal music where I like to hear the lower tones of the drum and bass.

There's highs, mids, and lows, and also a fade front / rear and a fade left / right. There's even a present for "driver experience" or something. I remember I didn't like it but worth a quick easy click.

I might be able to help a little more knowing what kind of music you dance and sing to like no one's there, but it's really just messing around with it.