Currently doing a TCS Wow sound decoder install, this project in particular I am putting the decoder and a speaker in the HO F7 dummy B unit along another speaker in the powered A unit. When finished this draw barred unit will have 8 wheel pick up.
Anyway, I have been using 30 ga wire for the LED lights, motor wires, track pick up, and speaker. These wires then run back to the B unit where I will tie into the decoder harness. The wires between the units will look like MU cables.
This amount of wires start to take up a fair bit of space and I am wondering if I can use a smaller wire. I have some wire which is the same size as the wires for the decoder harness but I think it may be too small once I run a good length of it between the units. My concern was whether too small of a wire would affect sound quality or performance in any way. Any guidance would be appreciated. I am not near my project as i type this but i will report back with the wire size i thought was too small.