I'm new to the spl sound off, I was able to compete this weekend at import face off san Antonio. I was place with my 2012 scion tc (hatchback) in the trunk 0-1k class. After reading the rules I found no hatchbacks were allowed in that class. If im not supposed to be classed there I would like to know what class I should be competing in for next time. I am running a single 12'' subwoofer with a 500 watt max amplifier, stock everything else. I will be adding a 1200 watt and adding a speaker. please help me understand.