Hello. My LP room fuse keeps blowing. I just bought the car AS IS. There is no power to the OBD11 port, radio, clock or dome lights. Cigarette lighter works. All fuses check out good with the test light. Then I pull fuses to check and find the LP room fuse blown. When I try to replace it with a new 15A fuse IT BLOWS AGAIN IMMEDIATELY! Please help. I will be checking the wires going into the door to the speaker soon?