This will take a few min of your time....
Make a short jumper wire that you can fit in your plug and long enough to go to any other opening in the plug
using a VOM find the hot lead
put one end of the jumper in the hot lead
DO NOT LET IT TOUCH THE GROUND LEAD
now go thought the rest of the leads on the plug till you find the one that controls the marker lights just remember those 2 jump them across and you are done...
I have the 7 pin round and use a flasher to short the 2 across so the lights flash. Works well if a friend is trying to find you at night
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12