I didn't want to lose my AC controls in my center console so I bought this instead of the JL Audio Stealthbox.
http://cgi.ebay.com/07-GMC-Yukon-Ch...photoQQcmdZViewItemQQ_trksidZp1742.m153.l1262
It comes with the box, 12" sub, and amp for $369 + shipping. The box sits between the 2nd row captain chairs and is strong enough for someone to sit on (of course no seat belt so shouldn't do this when driving), but definately can step on it and load cargo on top of it. You can choose the carpet color to make it match better.
It sounds good and hits hard. Several people have been in my tahoe before and after the install and don't really notice it at first. Once they do notice it, it is because they like the "table" effect between the chairs. The seats still fold up exactly how they should.
The person who gave me the link had the amp located under one of the 2nd row seats, but we tote too much and I didn't want to lose the room inside the tahoe. So, I have the amp in the area where the jack normally goes (I have the power liftgate so couldn't use the other side). Need to find a better place for the jack and tools...may look at one of the battery boxes mentioned on another thread.