IdahoMtnSpyder
Active member
According to the wiring diagram for the 2014 RT the wire for the accessory circuit is 18 gauge. From what I find doing some Googling 18 ga in a 12 volt auto circuit will carry up to 10 amps up to 10 ft total length (power + ground return). I think one would be OK putting a 10 amp fuse into the box. Remember that would be 10 amps for for both plugs at the same time. If you put a 10 amp fuse in the box and run a compressor just make sure there is nothing plugged into the other outlet. You should be safe then.In 2014 and later the Accessory Fuse was changed to 5 Amp. On previous years it was 10 Amp, including Model Year 2013 (when they introduced the moveable fuse for switched or always on accessory plug).
Regardless of the fuse size the owners manuals always stated it was for no more than 3 Amps.
Not sure why the fuse was downgraded in 2014.
I got around that concern with my trailer wiring. I have a 10 ga power lead direct from the battery to the trailer connector. This is to provide charging current for a deep cycle battery I carry in my 'tent on a trailer'. I made up a socket attached to a trailer wiring plug into which I can plug my air compressor, or any other heavy 12 volt load. I plug it into the trailer connector and have plenty power.