The Infinity subwoofer in the 2007-2010 Jeep Wrangler has a bracket in the rear that rusts. The bracket isn’t available to purchase separately so I print this bracket as a replacement. See the video below for details.
If there is any water around this bracket, the nut will usually rust to the stud and it will break. We now offer a bracket with a stud kit! (Stud, replacement nutsert, stainless steel nut and washer.) Here is the installation video for replacing the stud.