Route the connectors to the a-pillar fuse and relay panel (SAM).- Loosen the right a-pillar fuse panel (F1/3).- Attach the constant power supply contact of the PDM wire harness to slot F308 of fuse panel F1/3 from behind. When the vehicle is equipped with Brabus PDM (464-PDM-00) already, attach the power supply connector to the distributor of the PDM wiring harness (shown below).