You can find hardware-specific diagrams and basic operating instructions on Audiovolt's Support Page .
: 16-pin OBD2 Male (J1962) Target : Connect to BMW ICOM A2 interface or directly to vehicle’s DLC. bmw 8259ver01 user manual full
Pre-installed with GPS for online/offline maps like Google Maps and Waze. You can find hardware-specific diagrams and basic operating