Not sure about the port area. all i know is its 2.5 in wide and L shaped. I am going for daily driver with SQ but can get loud. My cousin built it and all pieces dont align very well, glue everywhere, and the MDF is starting to split. (how do you get it not to split?) I rather just start fresh and make it alittle smaller and get the extra trunk space. It is going in a Nissan Pathfinder.