Universal Audio Fitting Accessories Available here. Whether you are upgrading an entire system, or just need to replace a broken part, replacing your car’s audio system can be easy with the right tools. To help you with this, MicksGarage.com offers a wide selection of universal audio fitting accessories to make your job easier. Whether you are looking for harness adaptors, release keys or sound deadening material, we have what you need. Our stock comes with a 30 day no hassle return policy, and our friendly customer service staff is here to answer all your questions. Take the challenge out of replacing your audio system with our selection universal audio fitting accessories.