Because Toyota utilized this footprint for decades, locating compatible aftermarket wire harnesses is incredibly easy.

Yellow — Maintains memory settings like clock and presets Pin 5 (Front Right Speaker -): Gray with Black Stripe Pin 6 (Front Left Speaker -): White with Black Stripe

wire, the spark that brought the music to life when the key turned. The hardest part was the ground. In these old units, the Black (Ground)

Constant +12V Battery — preserves clock/radio presets Pin 5: Front Right Speaker (-) Pin 6: Front Left Speaker (-) Pin 7: Ground (-) The 6-Pin Connector (Rear Speakers)