The consult port, meter & gauges, and warning lamp are all on a 10 amp fuse. Idk how much those accessories draw but if anything, that fuse is whats gonna go first. If it draws more i suggest using the cigarette lighter circuit which is covered with a 20amp fuse and is probably designed to handle accessories such as tire pumps which draw alot of current. That circuit is also shown on EL-7 but a blow up version is available on EL-88