Hi, I have many old Lionel Remote Control Track controllers (ucs-44 i think) where the flat wire harness has become brittle and many are broken.  I am looking to rewire these myself and was wondering if anyone could tell me what gauge wire I should use.  I know I can get lengths of the flat 4 wire on eBay and such, but was looking to try and get the wire locally and make my own wiring harnesses.  Thanks!