SYSTEM DIAGRAM 1. for Driver Side: 
2. for Passenger Side:  |
Toyota Tundra Service Manual > Navigation System: Microphone Circuit between Microphone and Navigation Receiver Assembly
DESCRIPTION This circuit sends a microphone signal from the telephone microphone assembly to the navigation receiver assembly. It also supplies power from the navigation receiver assembly to the telephone microphone assembly. WIRING DIAGRAM PROCEDURE 1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIV ...
