Q: How to test and replace the antenna on Lincoln Town Car?
A: On 1997 and later models, the antenna is a grid bonded to the rear window and cannot be replaced conventionally. To check the antenna, perform a resistance check between the cable and mast. If correct, the antenna is okay; otherwise, inspect the cable and base. Replace the cable or antenna if the resistance exceeds five ohms. Disconnect the cable from the negative battery terminal and remove the antenna for replacement. For a rear-mounted antenna, remove the trim panel, unscrew the mounting screws, and disconnect electrical connectors to remove the antenna assembly. To replace the antenna mast and drive cable, remove the retaining nut, pull out the mast, and replace the cable. Verify proper operation by activating the antenna through radio on/off cycles.