Mount Master, Fuel Pump, Mag L, Mag R and starter switches on mounting bracket on left side of cockpit.
Fabricate mounting brackets for Hot Box from 3/4 x 1/8" Al angle stock. Mount Hot Box on forward side of fire wall with AN3-5A bolts, steel washers and nylon locknuts (4 each).
Connect terminals to power leads and hook up to battery. Fabricate insulating plastic guard and bolt to battery bracket. Ground (-) battery terminal to airframe using AN3-15A bolt, washer and locknut to secure ground wire.