Navigation Cannot Control Audio/Disc/Rear Entertainment

Navigation cannot control audio/disc/rear entertainment

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

Are the Radio and the 6CD icons 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/CD?

YES - Replace the navigation unit.

NO - Replace the audio unit.