I am considering installing a 12" sub into the spare tire area of the rear of my hatch. If I did this, I would also install a 5 Channel Amp to the rear of it just in front of the seats to power the sub and all of the other 6 speakers. Has anyone attempted this? There is not a lot of room and I was curious if anyone has any pictures. Also, I would most likely build the battery for the vehicle inset into the cover a little as well.