Well I have a Pioneer head unit that is not installed too well, I can just pull it out. Also the left speakers do not work, I'm sure it's a wire that came loose because of that, but I had no luck tracing it. I have 2 subs I want to just put in a box that will fit in the rear floorboard, they aren't shallow mount, but I rarely have anyone ride int he back so space isn't that big of a concern. And one last thing, my amp was installed before by a "professional" and it blew 2 subs he recommended, and now a redlight is on the amp that I can't get to reset, and will not power the subs. I might just have to get a new amp for that. But anyway I think that covers it all.