For 1990-2009 cars

### Removal Procedure

1. If the vehicle is equipped with OnStar® refer to Mobile Telephone and Navigation Antenna Coaxial Cable Replacement .
2. Lower the front portion of the headliner to reveal the digital radio antenna connectors. Refer to Headlining Trim Panel Replacement .
3. Disconnect the digital radio antenna connectors (1).
4. Detach the 2 upper coax cable retainers from the header panel.
5. Detach the 3 coax cable retainers from the windshield pillar.
6. Lower the instrument panel (I/P) compartment door to a full down position.
7. Disconnect the digital receiver extension cable (1) from the receiver .
8. Remove the retainers (2) from the I/P.
9. Disconnect the electrical connector (3).
10. Remove the extension cable from the vehicle.
11. Detach the coax cable retainer (3) from the I/P.
12. Attach a mechanics wire to the end of the coax cable (2).
13. Detach the coax cable retainer (4) from the hinge pillar.
14. Grasp the cable (1) and pull upward to release the retainer from the hinge pillar.
15. Pull upward to remove the cable from behind the I/P.
16. Remove the cable from the vehicle leaving the mechanics wire behind the I/P.

### Installation Procedure

1. Attach the existing mechanics wire to the end of the coax cable (2).
2. Pull downward on the mechanics wire to install the cable behind the I/P.
3. Attach the coax cable retainer (4) to the hinge pillar.
4. Attach the coax cable retainer (3) to the I/P.
5. Connect the digital receiver extension cable (1) to the receiver .
6. Attach the retainers (2) to the I/P.
7. Connect the electrical connector (3).
8. Close the (I/P) compartment door.
9. Attach the 3 coax cable retainers to the windshield pillar.
10. Connect the digital radio antenna connectors (1).
11. Attach the 2 upper coax cable retainers to the header panel.
12. Install the headliner. Refer to Headlining Trim Panel Replacement .