Toyota 08600 Radio Wiring Diagram |top| -

Constant 12V (Pin 5) is not connected or fuse is blown. Fix: Check for 12V on Pin 5 at all times. If missing, run a new fused wire directly to the battery or fuse box.

The "08600" prefix is a common Toyota part number range for OEM (Original Equipment Manufacturer) radio and navigation units, typically found in vehicles from the late 1990s through the mid-2000s, including the Camry, Corolla, RAV4, Tacoma, and 4Runner. Unlike universal aftermarket stereos, Toyota uses a unique—but fortunately standardized—wiring color code. Toyota 08600 Radio Wiring Diagram

Here is the pinout table:

This smaller connector is dedicated solely to the rear audio output. Common Color Rear Right Speaker (+) Rear Left Speaker (+) Rear Right Speaker (-) Rear Left Speaker (-) Installation Visuals Constant 12V (Pin 5) is not connected or fuse is blown

Connect this to a clean metal surface behind the dashboard. Never use a bolt that holds the radio bracket—use a dedicated ground screw. The "08600" prefix is a common Toyota part