2008 Chrysler 300 Owner Manual - Page 233

UNDERSTANDING YOUR INSTRUMENT PANEL 233 Electrical Disturbances Radio waves may pick up electrical disturbances during transmission. They mainly affect the wave amplitude, and thus remain a part of the AM reception. They interfere very little with the frequency variations that carry the FM signal. AM Reception AM sound is based on wave amplitude, so AM reception can be disrupted by such things as lightning, power lines and neon signs. FM Reception Because FM transmission is based on frequency variations, interference that consists of amplitude variations can be filtered out, leaving the reception relatively clear, which is the major feature of FM radio. NOTE: For vehicles not equipped with the Electronic Vehicle Information Center (EVIC), the radio, steering wheel radio controls (if equipped), and 6 disc CD/DVD changer (if equipped) will remain active for 10 minutes after the ignition switch is turned off. Opening either front door will cancel this feature. NOTE: For vehicles equipped with the Electronic Vehicle Information Center (EVIC), the radio, steering wheel radio controls (if equipped), and 6 disc CD/DVD changer (if equipped) will remain active for up to 60 minutes after the ignition switch is turned off. Opening either front door will cancel this feature. The time is programmable. For details, refer to "Delay Power Off to Accessories Until Exit," under "Personal Settings (Customer Programmable Features)," under "Electronic Vehicle Information Center (EVIC)" in Section 4 of this manual. 4