I have 2 jl 13.5's behind the seats. I bought one of these boxes XScorpion X7989-10 Dual 10" 04+ FORD F250/F350 SUPER DUTY CREW CAB Custom Subwoofer Box then put it in the back and found out that two 10's wasn't enough so I took measurements of the box in the back seat to make a new one as big as possible without hindering the seat from moving and still using the power sliding window. Then recessed the speakers in the box 3/4" to keep them from hitting the back of the seats (the jl's are only 2 9/16" thick so that might not work on other subs). Works great and sounds awesome.
Did you have to pull the carpeting out from behind the rear seat? Mine seems to have carpet covering some things on the back wall of the truck. I have 4 tens in my old Ford F-150 and really just want to try to squeeze 1 ten into this one... Any help/advice would be appreciated! Thanks! Preston
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