I own a '97 dodge conversion van 2500 series. I think I have an elctrical
shortage because my radio is sometimey. When I go over railroad tracks for
an example it turns on/off. Another ex. if its on and I open the door it
shuts off. Also my side view mirrors,which are electric,does work as well
as my overhead lights. I've checked and changed all fuses dealing with
these problems. What next?