Hi eveyone

I am just rigging up a 2006 4 stroke T9.9 yamaha auxilary (Model # PXRF) and a 703 control unit.
From the batteries I have extended power directly to the stater relay and the negative lead directly to the starter motor.I turn the 703 unit to the on position and I see 12+ volts at the motor measuring across the starter and relay.Motor will not start nor the power trim.
I am new to yamaha and I cannot find the fuse link as I think the next check point would be the fuse.
Any help out there would be muchly appreciated.
Jim D