2002 Subaru Impreza Owner's Manual - Page 170

Audio Antenna system Installation of accessories Always consult your SUBARU dealer before installing a citizen band radio or other transmitting device in your vehicle. Such devices may cause the electronic control system to malfunction if they are incorrectly installed or if they are not suited for the vehicle. OM-H0115 Before listening to the radio, extend the antenna to its full length for better reception and reproduction quality. J FM reception Although FM is normally static free, reception can be affected by the surrounding area, atmospheric conditions, station strength and transmitter distance. Buildings or other obstructions may cause momentary static, flutter or station interference. If reception continues to be unsatisfactory, switch to a stronger station. 5-2