Begin by locating connector C2 behind the factory-infotainment unit–it houses 16 pins split into two vertical rows. Pin 1 (top-left, red wire) carries constant 12V+ directly from the fuse.

Locate the aftermarket head unit harness adapter matching the vehicle’s OEM connector–Metra 70-1761 or Scosche NN01B are verified replacements. Splice colors follow factory standards: yellow for constant 12V power,.