I've got a 2k1 4runner sr5 with out the JBL system. I'm building the sub box to go behind the second row seat, have done the head unit and internals, now I need a good place to hide the amp. It measures 12"x8"x 2.4" in height for reference. I wanted to put it under the driver side seat and mount it to a piece of ABS plastic then wanted to mount that to the seat frame holes but they are odd in position, not just four hole straight down on the floor and the floor pan isn't really flat under there. So my next place I was thinking was on the driver side in the rear panel behind the second row of seats. Has anyone done this? I know there's plenty of depth just by measuring, but I haven't taken the panel off yet to see what I've got. I was also thinking about using that little cubby on the passenger side but I actually have stuff in there and use it so that's really out. I'm not going to bolt it to the box or mount it to the back of the second row seats either. Any suggestions?