In my T6 ranger wildtrak DC, I have a single flat 8" pioneer sub mounted under the rear seat. I removed the plastic bin, and mounted the sub to a baffle board that is screwed down into the bodywork. I took the signal off the front speakers (very important, do not use the rear speakers for...
I tried to buy a few items from him. He never responds timeously to his gumtree ads, and when he eventually answers his phone, the items are always on hold for someone else.