Mobile Telephone Microphone Replacement without Sunroof
                    
Removal Procedure
- Lower the headliner enough to gain access
to the opening in the overhead compartment. Refer to  
Headlining Trim Panel Replacement 
  in Interior Trim.
 
- Disconnect the wire harness electrical connection (2) for the OnStar
microphone (3).
 
- With a flat-bladed tool disengage the retaining tabs (4) on the
microphone (3).
 
- Push the microphone (3) out of the
overhead console (1).
 
- Route the electrical connector (2) through the opening in the overhead
console (1).
 
Installation Procedure
- Route the electrical connector (2)
through the opening in the overhead console (1).
 
- Align the retaining tabs on the microphone (3) to the splines on
the overhead console (1).
 
- Push the microphone (3) into the
overhead console (1) until the retaining tabs (4) are fully engaged.
 
- Connect the wire harness electrical connector (2) to the microphone (3).
 
- Install headliner to a desired appearance. Refer to  
Headlining Trim Panel Replacement 
  in Interior Trim.