Do you have a box already? Are you going to have one custom made? Pictures of the JBL subs sitting in the rear hatch area, position 'em where you want 'em and we can guide you through the best install to fit your needs?
Some put one sub on each side, some put both of them facing to the rear just behind the seats, some put just one sub on one side, some put a few subs where the spare used to be, I put one sub where the spare used to be... help us help you :4tongue:
Plan on using LEDs and plexiglass? An Infiniti logo? You need an amp, the subs, a line driver, some heavy duty wire, a heavy duty (100 amp+) fuse, and a way to tap in to both the remote line and the input to the stock sub.
I installed my own, but this was 2 years ago.