As far as conducting electricity is concerned, wire is wire is wire. Whether it was originally meant to be used to wire houses, automobiles, aircraft, communications systems or the space shuttle is of no consequence. The things that ARE of consequence are:
As I understand your situation, you would like your wiring to be as unobtrusive as possible. To that end, go with speaker wire (with transparent insulation) for the rail drops, and heavier wire for your power busses. The rail drops can be brought down through the brackets or next to them. The power busses can be run right against the wall, where they will be visually disconnected from the track.
Since your requirements are diametrically opposite mine (the track I am currently building is destined to be hidden once scenery installation begins, and my electricals are quite complex) I will not mention my methods of installation.
Chuck (modeling Central Japan in September, 1964)
Fire3240 wrote: I was wondering if anybody wires their layout with automotive wire?
I use 12ga stranded "house wire" for my layout DCC buss wire. My layout runs around the walls of a 30' x 60' basement. I purchased 500' contractor spools of red and back wire from Lowes as it was much less expensive.
I use 18ga stranded "automotive" wire for jumpers to the track. I buy it as I need it and usually find the best price in the automotive section of Walmart. The issue is not "house wire" versus "automotive wire", but the guage of the wire that you are using.
Jim, Modeling the Kansas City Southern Lines in HO scale.
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam