I made my wiring a mission when I installed the speed passion brushless gear. I'd run my dad's GTB for a bit so got an idea of where I wanted to route things and what problems I hit with positions, etc.
I wanted the wiring to be perfect and make everything else easy to work on. Also keep the motor wires short to reduce any power loss. The sensor wire is a little annoying since the 90mm supplied wire is a touch too short and the 180mm one is a bit too long. if only they made a 120mm sensor wire...
The beauty of solder posts if you can solder the motor wires on upside down if you want. I did this purely to get the motor wires as low as possible and therefore they would travel under the centre shaft. You could do with with the speed rotated if you wanted, but they would be longer if facing the rear and up against the servo if facing the front. I tied up the excess servo/PT wire with the speedo-reciever wire and routed it tidy under the shaft.
the biggest niggle I had when I ran my wires either over the top of the top deck or between the shaft and deck was it was a pain in the ass to remove the slipper/spur assembly. Running the wires tidily under it solves this. The V3 motors genius plugs make it easy to get them running where you want them to go.
Wire the speedo mounted like I have it also gives easy access to pop out the receiver wire and plug in the spare when connecting the programmer unit.
The battery wires are kept out of the way and secure so they don't rub on the spur. Since you can't see it in the pictures the power cap (or K.E.R.S as my dad calls it...) is mounted under the slipper on the chassis. I hated the GTB cap since it's so big. the GT2.0's being 2 smaller ones makes it easy to hide it away.
anyway here are some pics.
