I have had the Weatherproof 7 circuit Circuit Boss (4 switched and 3 hot) for about 6 years in the truck. It is mounted on the firewall under the hood. I have had no problems with it until recently. The switched circuits are only working intermitently. The majority of the time they do not work unless I move the relay around a little bit. The constant hot circuits are not affected since they continue to work. I tried cleaning the contacts on the relay and connections with contact cleaner but hasn't seemed to do anything. Anyone else have a problem like this? Any ideas what to check next? I would like to hardwire my Sirius and scanner but am holding off until this is resolved.