Q-Mat - Speaker surround guide

                 Installing the Q-Mat Sound-Shield for audio speakers can make a big difference to the performance of your car audio system.
                 It improves the sound quality by reducing unwanted vibration and resonace from the door or parcel shelf panels and focuses
                 the sound into the car interior.
                 For the full effect, we recommend the full door kit where both inner and outer door panels are covered with Q-Mat.