Welcome to PPA Car Audio. We are a specialist supplier and installer for Holden Calais reverse camera, Holden Calais reverse sensors, all reversing safety gear, Holden Calais navigation units with DVD GPS Bluetooth reverse camera and Holden Calais steering wheel integration systems for latest make and model Holden Calais, audio products, DVD headrest system, Holden Calais DVD roof mount system, Holden Calais GPS tracking device, amplifiers, speakers, splits, subwoofers, Holden Calais video recorders. We extend our services to be able to cater for cars, buses, trucks, fleet vehicles and more. You can come to us or we also offer an onsite service to you in Melbourne. We can come to your home or office to supply and install a Holden Calais reversing camera or perform other upgrades to your Holden Calais.