wall or not

[944guy 1]

I was thinking of putting up a wall in the 944 for that massive dmx12 stage 2 i just had some one tell me that if you make a wall in your car you can get pulled over because you cant see out the back window is this true? my other question is, is there a class in comps were u can use a single 12 and if so what is the avg DB that people hit at say 50-60hz and what is the world record with a single 12. Was thinking sub in the middle and 2 6 inch aero ports on the sides next to it. never done a wall but would like to give it a go and maybe get into some comps.

[///M5 2,833]

Please not to even a 944.

[944guy 1]

I dont know the eights are nice but i think a single 12 would be a little nicer o and i would use swade on the front of the wall if thats how you spell that. it would be removable and mostly for comps.