Thread: A pillar wiring

So I have had my 110 for five years now and I have finally had some time to carry on with jobs that I wanted doing. This time round, it was installing a roof console. My main concern that has been bugging me is that because I wanted to move my UHF to the roof console it meant that I needed to resolve the wiring to get there. I had looked for ages to see if someone else had solved this issue but I didn’t find any good solutions that fitted with my plans.

Whilst scrounging all the bits and pieces that I needed, it suddenly hit me. I had the perfect idea, I just needed to try it out.

I had always wanted to feed the wiring (antenna cable and power) to run through the A pillar, but as we all know, there is no space there. In my case the left side pillar had the rear wash tubing and a large twin speaker cable (from a previous owner) that I wanted keeping and the right side had the same speaking cable along with the three wires for the internal roof light. I had no chance of adding anything more, or so I believed.

The Eureka moment was when a came across a piece of mini trunking (MT2) that had lying around. This mini trunking is a plastic channel (in my case 25mm x 16mm). This is used for concealing wiring in the building industry. It is a base U shape with removable lid.

I took my left over and cut a small piece off and held it up to the A pillar for sizing. Guess what it was almost a perfect match. So I removed the original cover and held my sample up again to check again across all the length of the pillar. I even checked when closing the door that it still fitted, which it did. This was now my solution for wiring through the A pillar. What it meant now was that when fitted, the original wiring would have a route through without getting pinched when trying to fit the original cover on or getting pierced when screwing in the fixing screws. I could fix the base trunking with the same screws, then insert the wiring then pop on the lid. The lid is removable so in the future more wring can be inserted.

Because of the size trunking that I was using it also meant that I could now wire the antenna cable and power cables in there with room to spare.

The mini trunking is available at the local hardware store in the electrical section. They should also have two main sizes 16mm x 16mm (MT1) and the size I used MT2.

Below should be some pictures of what I achieved. I hope to share my method of the external method used for antenna cable routing in another post.

Very neat