Check the listing for details. Phoenix Gold ZDAPM1 DSP Power Kit Basic Sound System For Mazda Premacy 2001. Color: Black, Condition: New, Made in USA. Listed at 514.20 USD. The ZDAPM1 is a DSP Power up kit for a range of Mazda vehicles (for a full model list please view Vehicle Applications). The ZDAPM1 power up kit consists of a variety of technology designed to improve the overall audio output of a vehicle. The ZDAPM1 includes a 400W DSP Amplifier and plug and play harnesses. And best of all the ZDAPM1 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. ZDAPM1 Key Points ZDAPM1 Quick and easy install No modifications needed on the vehicle Invisible integration ZDAPM1 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 available .