Nice! Sorry, forgot to respond, but looks like when they ran my amp power wire, they did it in the side of the firewall grommet instead of through it. Was letting in water.

Thanks for your help!!!

I had a hole the firewall that I ran the supercharger wiring through. sealed it and my leak stopped

Yo - I saw your thread about the wet drivers side floor board, but a resolution was never posted. I'm currently experiencing the same problem. Only drivers side. Nothing ever on passenger side. Were you able to figure out the problem?