Dual DA304 owner manual One Year Limited Warranty, What to do?

Contents PERFORMANCE SERIES Mobile Power AmplifiersDA304 DA602 DA604 DA904 DA4001 DA6001 DA8001 INSTALLATION PreparationBefore You Start Mounting LocationConnection Descriptions INSTALLATIONPower Wire +12V Ground Wire GNDINSTALLATION Audio Inputs and ControlsPower and Speaker Connections INSTALLATIONDA602 DA304INSTALLATION Audio Inputs and ControlsDA4001 DA6001INSTALLATION Power and Speaker ConnectionsSpeaker Connections Typical Wire Routing INSTALLATIONPower/Ground Wire Size Main Power ConnectionsAmplifier Connections INSTALLATIONInput Signal Connections Low Level Input RCA High Level Input Speaker WireMaster/Slave Mode INSTALLATIONMaster/Slave Mode cont INSTALLATIONMASTER SLAVEConfiguration/Setup INSTALLATIONLED Indicators Input level Control Crossover ModeTroubleshooting INSTALLATIONProblem indicatorINSTALLATION SpecificationsDA904 INSTALLATION SpecificationsDA4001 One Year Limited Warranty What to do?