I know this won't answer the original question but it is a related issue. The 12 volt
"cigarette" outlets that AS uses is connected to a line that is fused with either a 15 or 20 amp fuse. However, the wires on the back of that outlet are not large enough to carry that current. We used that outlet to run a 12 volt
vacuum cleaner that was rated at 10-12 amps. The wires caught fire but the fuse did not blow. Winegard, the manufacturer of the outlet, clearly state in the installation manual that the outlet is rated for a maximum current of 7.5 amps. I love AS, but after talking with them they insist what they have done is safe.