Wiring Up VSS and OBD2

Here are my plans to wire up VSS and OBD2 connector from the rear of the van to the front.  It is important to have a good signal for the VSS, so shielded 18 AWG copper wire protected by OEM level sheathing was chosen.  The cable has 6 wires, so the other 3 will serve to send OBD2 power, ground, and codes signal from the rear to the front.  There are only 3 wires required for Subaru codes, so I am going to cut a regular OBD2 cable, splice the three wires I need to send, and only route those to the front female connector.  Also, I have a Subaru diagnostic port (includes an female OBD2 connector, of course) that I found at a UPull & Pay for $2.  I'm going to split the signal to that port as well so mechanics working in the back of the van will also have a signal.

A., B, and C. are all housed in a water-proof poly-carbonate case along with the Subaru ECU.
Depending on whether the 3 PIN connectors are put into the VW black box or kept exposed in the engine bay will determine the quality of connector I use.  At the front of the van, all the wires are protected under the dash, so they will be standard connectors.

Last, I will actually be running 2 cables (e.g., 12 wires total) under that van.  The spare wires will come in handy when hooking up Subaru Cruise Control and aftermarket gauges when the time comes.