Having a weird electrical problem some of you guys may know how to fix. If I plug something into my cigarette lighter sometimes it will short out the radio for just a second. THe radio goes off but the interior light come on /forums/images/graemlins/eek.gif The radio loses its presets and everything Then sometimes when I open the door and the lights come on the radio goes off /forums/images/graemlins/dunno.gif The truck has a Viper alarm the previous owner had installed. I think it plays a part in it because usually a alarm is tripped when the door opens because the interior lights switch on and the alarm uses that as a signal. What I don't get is why it is cutting off my radio? Any ideas what this could be? In idea how the radio gets its power is affected by the interior lights????