Navigation cannot control audio/disc

WARNING: This page is about a different car, the 2008 Acura CSX, 2007 Acura CSX, and 2006 Acura CSX. However, it is still accessible from the selected car via links, so may be relevant.

Make sure the anti-theft code for the navigation system is entered.
Go into the Diagnostic Menu and use the "Navi System Link" test (see SYSTEM DIAGNOSTIC MODE ).
Is the "Radio" icon red?

YES -Do the TROUBLESHOOTING FOR THE VOICE GUIDANCE CANNOT BE HEARD .

NO -Go to step 3.
Substitute a known-good navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ), and recheck.
Can the navigation control audio?

YES -Replace the navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ).

NO Do the audio system troubleshooting.