I gained the routing idea at the aft end from the Vans Forum and the trim relay/speed controller location (under the seat pan) from JT McCracken's website. I drilled two holes in the seat panel so that I could use a small long screw driver to change the speed controller during testing. I did this and moved it to the fastest setting and it works great for me using the infinity stick. The speed controllers are Matronics Governor Mk3's.
The aileron trim is wired but the springs are not connected so that it can be used later if required. So far I have not seen the need for it.
The tray on the right of the stick is for my LED light controllers.
The item in the middle of the aft deck is the magnometer for my MGL EFIS.