I'm oblivious to any of this, but I was thinking.

Could people who are going to use the button launch NOS put their tube behind the driver's seat to keep it hidden?

I was just thinking of stuff I could put back there.

 

What does the button have to do with mounting the bottle?

Yes you can mount the bottle behind the seat. I'm assuming you mean where the sub would go with bose. The thing is you want a secure place for the bottle to mount. Installing and removing a 10lbs bottle would be a little difficult but a couple of 5 lbs would work.

My tint is so dark I can get away with just putting the bottle inside a gym bag in front of the strut tower brace.

 

Don't forget about the 10oz bottles which might be able to fit with the brake fluid, or the 1lb, 1.5lb and 2lb bottles which can go damn near anywhere as well.