Charging circuit for Mercedes-Benz SLK-class AMG R172 (2011-2016)

1.8L TURBO 3.5L ADDITIONAL BATTERY ADDITIONAL BATTERY CIRCUIT ALTERNATOR BATTERY SENSOR (ON BATTERY NEGATIVE (-) POST) BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMPUTER DATA LINES SYSTEM ECO START/STOP FUNCTION ADDITIONAL BATTERY RELAY FRONT PREFUSE BOX FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE FUSE FUSE 164 FUSE 30 FUSE 88 GRN WIRE GRN/WHT WIRE INSTRUMENT CLUSTER LIN ME-SFI (ME) CONTROL MODULE MULTIFUNCTION DISPLAY N/A NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY PYRO- FUSE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RIGHT REAR INTERIOR STARTER SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE W/O ECO START/STOP FUNCTION