Subaru Alarm, Remote Start, and Stereo Wiring Subaru wiring colors and locations for car alarms, remote starters, car stereos, cruise controls, and mobile navigation systems. Vehicle Speed Signal (VSS), and Brake wiring can often be found in the alarm/remote start information available. Please scroll down as some years are combined! (ex: 2010-17) Vehicle Wiring Results for "All Subarus sigma wiring diagram? - Subaru Forester Owners Forum wwwruforester››International Forums›EuropeMay 18, 2015In respect to a MY03FXT, All the Sigma M30 alarm wiring was fitted on the vehicle's arrival in the UK. Only from MY08 is the alarm wiring part of the OEM wiring loom.