Power supply Rope winch

Hello together I can’t have an offroader but for my problem I’m better off here. I drive a Golf 6 Variant from 11/2010. Sometimes I have to pull my trailer out of the dirt and without four wheel my car buddling in. First I wanted to buy such a rope winch for 100€ but luckily I read here before and get out that the winds can’t even pull a garbage can. Since I don’t want to build the winch comes for me only one for me r the trailer coupling in question. I ordered this here http://www.youtube.com/watch?v=z0cPsDRQWCI Now I do not always want to put the cable forward to the battery and wanted to ask here how strong (square) the cables must be designed to bring the 160A from the battery to the winch and if possible near the trailer coupling a separable connection so that I can connect the winch right back electrically. Since I do not have the winch yet I do not know how s What are the connectors for the power cables? The car has a 72Ah battery and a 140A Lima Would I be pleased to receive an answer. Greeting SVEAGLE