This is a very basic install - like, really basic. It's not much of an install at all. but anyway.... I've replaced the 2x 10" Alpine type S subs I had from a couple of cars back to a single 12" Alpine type R + Alpine box. I'm very impressed with the sound from this unit, and IMO looks a lot neater in my boot / gives me a lot more usable boot space.
Not very impressive, but nice and tidy. Amp is mounted behind the sub box so you can't see it, but easy to get to by bringing the smaller part of the rear seat down.