The ZDAPGM1 is a DSP Power up kit for a range of Chevrolet/Opel/Vauxhall vehicles (for a full model list please view Vehicle Applications). This power up kit consists of a variety of technology designed to improve the overall audio output of a vehicle. The ZDAPGM1 includes a 400W DSP Amplifier and plug and play harnesses. And best of all the kit will work with the Phoenix Gold ZDSK speakers or even your factory installed speaker system, allowing you to enhance your audio in whatever way you choose. ZDAPGM1 Key Points ZDAPGM1 Quick and easy install No modifications needed on the vehicle Invisible integration ZDAPGM1 Sound quality superior to the original one No additional accessories required All in one box Use ch 5-6 for Subwoofer RCA output DSP Processing Bespoke software .