Anyone ever had water in the spare tire well??

[edthefox5]

Its most likely the tail lights. If you open the hatch you can quickly see all the water runs down the hatch valley right over the tail light seam. Slightest leak there and you have water in wheel well. I bet if you pull all the panels away from the back of the damaged lamp you'll see a water trail below that light.
Last 3 Nissan's I've owned all started leaking around the lens for some reason. I now preempt that on all cars I've owned by running a bead...a small very nice bead of clear caulk across the seam of the light assy in the hatch valley.Let it dry before closing hatch & problem solved. Good luck.