Are there any decently priced sub boxes that go under the rear seat for an 01 expy? Only ones I have been finding are ones that either go in the 3rd row spot and kill your cargo space, or under the rear seat but don't allow the seat to fold. that would be an option but I cannot find it now, and I think it was quite pricey. wouldn't it be better to just build one, or could I get by with a generic box? Also, while I like the stock 01 stereo (premium), it obviously has no low level outputs. Are the low level adapters a waste of money, or do they work really well? I have gotten mixed reviews on them. I am not exactly looking to upgrade the head unit, as I like the cd changer, but I am not opposed to it. I just don't want one of those fancy looking ones that attract the wrong attention. In my F150 with a custom box under the rear seat, I had an Excelon DPX701. I tried and tried to find one, and the only one I found has the lighting non-op. Other than that, they are impossible to find. Any suggestions for one like that?