Im looking at upgrading my 97' wranglers audio and im wondering what are the largest subs you can fit in the rear cargo space without interfering with the rear seat, i would like to put in two 12"s, but ive heard that two 10"s are the biggest you can fit. I would also like to know if it is better to have them down facing or facing towards the rear door. Thanks, and please share your system if you have a wrangler