Hello Jim
The BST51507-01 Rear Cargo Liner will fit your 2015 Jeep Wrangler. There is not a marked area to cut out for the subwoofer. Cutting out the liner for the subwoofer would allow water, mud, dirt and sand to ruin the subwoofer over time. If you keep the cargo
liner in tact you will block some sound, It would be your decision based on what is most important to you and how your cargo area is going to be used. Thank You for your
question. Jon Snyder 4Wheelparts