I'm not worried about the costs, as I've sustained enough money to live on and make some big purchases at the same time. I've been thinking about possibly making a port in the middle of the back seat where there is a fold down drink holder or something of the sort, which could possibly enhance the "Boom". I checked out my subs, and they are indeed deteriorating. Also, They're in a ported box. They are alright, but I've heard far better. I will be measuring out my trunk space, as well as the fold down arm rest/cup holder in the back seat for viable options. I had an interesting idea that I wanted to share and get your opinion on if you would. Would it be any better/worse to change the orientation of the box? for example, it is facing the trunk hatch, would it be any better to face it towards the cabin? If there would be a difference, I was thinking about constructing some type of large tube to run into the cabin itself from the ports in the box. Not sure if that would be substantial or not. On another note, once I've got some measurements, I will scour the web for some better equipment.