how to hook up an MRC AD520.......

hello everyone, i have an MRC AD520 auto reverse module i need to use, the problem is that i have had it for almost a year and i have lost the directions to it. would anyone out there know how to wire this to a reverse loop? it has two each off yellow wires and red wires. any information is appreciated. thanks![:D]

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Very easy to wire up. Assuming you are ok with the track gaps etc. The wiring is as easy as wire the two red wires to the main side of the bus, then wire the two yellow wires to the loops side of the bus.
Heres a link to a picture of the instruction sheet if you wi***o have it.
http://www.zip.com.au/~mrc/mrc-003.htm