well way back i had this weird electrical problem when it rains and im still not sure what causes it >> but i did figure out that with the integration relay unplugged that something is still powering the heater controls when the door is closed. does anyone know what relay controls the heater and is connect to that, because i am trying to troubleshoot the problem and im sure im getting pretty close to it?? the only rememedy to get rid of the problem is by having the car dry out for a long time with the battery disconnected.