My car has developed a strange electrical problem. The brake lights, tail lights, dash lights, interior light and radio will occasionally stop working. The headlights and signal lights still work fine, as do the high beam indicator lights, the battery light, and the E-brake light. the car will often be working fine, and then BAM, everything I mentioned above will short out. It's very strange. sometimes the shorts will happen for no reason, other times it will happen when I push the brake pedal or turn the headlights on. It was suggested to me that the problem could be in the headlight switch, and that replacing this might solve the problem. Does anyone know anything that might be able to help me? Thanks.