I'm trying to come up with a trolling motor steering control, left and right, using 2 SPDT switches and 2 SPDT relays. I'm using Bosch style relays where pins 85 & 86 are the coil and pin 30 is switch with 87a being nc and 87 no. I've tried applying knowledge from this thread: http://forum.allaboutcircuits.com/threads/using-2-spst-switches-to-control-a-linear-actuator.80630/ but have little experience with this type of wiring. I'm confused how to physically wire the circuit to get the expectant outcome. Any help is much appreciated.