Navigation cannot control audio/disc

Navigation cannot control audio/disc

1. Make sure the anti-theft code for the navigation system is entered.
2. Go into the Diagnostic Menu and use the "Navi System Link" test.

Is the "Radio" icon red?

YES - Do the troubleshooting for the voice guidance cannot be heard.

NO - Go to step 3.

3. Substitute a known-good navigation unit, and recheck.

Can the navigation control audio?

YES - Replace the navigation unit.

NO - Do the audio system troubleshooting.