INSTALLATION PROCEDURE 1. INSTALL RADIO RECEIVER ASSEMBLY 2. INSTALL NAVIGATION ECU Click here 3. INSTALL NO. 1 RADIO BRACKET (a) w/ Navigation System (1) Install the No. 1 radio bracket with the 5 screws. (b) w/o Navigation System (1) Install the No. 1 radio bracket with the 3 screws. 4. INSTALL