SOUNDS LIKE A BROKEN WIRE IN THE MAIN HARNESS WHERE IT GOES THRU THE DOOR IN TO THE LEFT FRT BODY PANEL, NOT AT ALL UNCOMMON,BUT USUALLY IT IS THE SPEAKER WIRES , WITH THE DOOR OPEN THE HARNESS IS BEING PUSHED FORWARD AND MAKES CONTACT AND WHEN THE DOOR IS PULLED AROUND TO CLOSE IT PULLS ON THE HARNESS AND WILL LOOSE CONTACT , THE BROKEN WIRE IS USUALLY RIGHT IN THE BEND OF THE HARNESS , JERRY