AXDSPL-MST1I N S T A L L A T I O N I N S T R U C T I O N SAxxessInterfaces.com © COPYRIGHT 2020 METRA ELECTRONICS CORPORATION REV. 3/2/20 INSTAXDSPL-MST1Google Play Store Apple App StoreiOS 12.1 or higherINTERFACE FEATURESINTERFACE COMPONENTSTOOLS & INSTALLATION ACCESSORIES REQUIRED• Crimping tool and connectors, or solder gun,solder, and heat shrink • Tape • Wire cutter• Zip ties • MultimeterTABLE OF CONTENTSConnections ............................................................2Installation ......................................................... 3-4AXDSPL-BT Installation...........................................5AXDSPL-SP Installation...........................................6Mobile App .........................................................7-15Specifications ....................................................... 16GM DSP Interface With Amp Bypass Harness2014-2018• Includes a DSP (Digital Signal Processor)• 15 Band graphic EQ• 6 outputs including front, rear, and subwoofer• Independent equalization for front, rear, and sub• Selectable low pass, band pass, and high pass filters• Selectable crossover slopes; 12db, 24db, 36db, 48db• Each channel can be delayed independently up to 10ms• Clipping detection and limiting circuits• Retains factory parking sensor chimes• Retains OnStar® voice prompts• Adjustable chime level• Designed for MOST® amplified models• Includes an amp bypass harness• Internal header port for adding interface modules• Bass knob included for level control of subwoofer amp• Settings adjusted via Bluetooth® in a smart device application (tabletor mobile phone), compatible with both Android and Apple devices• Read, write, and store configurations for future recall• Password protect feature available in the mobile app• Micro-B USB updatable• AXDSPL-MST1 interface• AXDSPL-MST1 interface harness• AXDSPL-MST1 amp bypass harness• Bass knob• GM MOST® InterfaceAPPLICATIONSVisit axxessinterfaces.com for current application list