Remove the Antenna mast , unscrew and remove the Antenna cable first. Pull the Antenna base cable extender off the Antenna connector. Disconnect the Antenna base cable from the Antenna extension cable and press the Antenna base cable grommet out through the firewall. Open hood to expose the Antenna cable/base afterwards disconnect cable and removed coller bolts for the Antenna cable/base then removed the Antenna cable/base from vehicle. For installation, start with the fixed Antenna cable/ base installation and make sure to adhere to the fastener notice. Then, mount the Antenna cable/base mounting bolts & torque to 11 n.m (97 lb in). Run the Antenna base cable under the a/c case and out the hole in the firewall, install and seat the Antenna cable grommet. Re-install the Antenna collar, connect the Antenna base cable to the Antenna extension cable, install the passenger side hinge pillar trim , and lastly, install the Antenna mast.