I just got round to ripping out all the audio equipment left in my car by the previous owner. Had a sub, amp, and a couple of pairs of 6x9's in boxes. It was taking up half the load space, and really I need the whole load space so don't really want to have any gear in there if I can help it. I did look at a pair of 6x9 MDF boxes and having them fixed to the sides up by the bulkhead, but I think even these might get in the way.
However, I had a look behind the seats today ,and I noticed there are small cavaties behind each seat. What I was thinking, if it's possible, is to cut out a piece of MDF to cover these cavaties up, mounting a 6x9 speaker in each. I'd probably run them off a small amp under the passenger seat, but I just wanted to know if this was a feasable location for having them. I don't know if they'd sound horrible for being there, but it seems like they'd be right out of the way there.
If not, any other suggestions are welcome!