I am  a new bee to this site and to this motorhome  2001 discovery 38.5' with a Cummins 5.9 300 hp pusher what are the 2 rocker switches  for under the dash close to the steering colum ?   Is there anybody from Lansing Mi area who would take some time  and show me how some of these items work on this monster,The  owner was in really bad shape and could not offer any help when i bought this Motorhome