? re running wire front to back on 4104 or similar.

[zubzub]

So it's time to run some new 14 G wires (plus a 3/8 air line ) front to back on my bus.  My time is always short with the bus so tips on ways to do it would be appreciated.   I had a look in the bays, and other than drilling holes through all the bay walls it is not clear where I should go.  How about the main harness that goes from the front relay panel to the rear panel, is there room in its run to fit more wires? As always all info appreciated.

[Len Silva]

There are quite likely some spares and/or wires no longer used between the front and rear panels.

Good luck with the air line. Most conversions have so much stuff in the bays that it's very hard to get into the tunnel.  It might even be easier to run through the living space.