Hyundai Elantra HD: Glass antenna
When the radio power switch is turned on while the ignition key is in either the ON or ACC position, your car will receive both AM and FM broadcast signals through the antenna in the rear window glass.
CAUTION
- Do not clean the inside of the rear window glass with a cleaner or use a scraper to remove any foreign deposits as this may cause damage to the antenna elements.
- Avoid adding metallic coating such as Ni, Cd, and so on. These can interfere with AM/FM reception.