[quote=ChrisM]Fortunately my car is at home in a garage. I would welcome the instructions on how to fix this myself. I will try sorting the melted wiring over the weekend.
Please my earlier post. You can follow its instructions to the last part.
I shall assume you have a bit slack at the wires. Here is what I think is the safest splice you can manage within you current skill level. It is certainly fine by me. I do not want to get you into anything exotic at this stage of your auto-mechanical life.
Buy these1 or these2. You can also find them at Halfords which I cannot access online from the high Andes.
And also buy a cheap wire stripper
The trick is to trim the damaged wire off the 4 wire ends and then expose the good wire by stripped the rubberish covering of the wire. In the beginning the danger is constantly cutting through the cover AND THE wire. A razor blade can help, cutting only the plastic. I have wire cutters but I often do it by merely likely squeezing the wire, with scissors or a pliers (They have a section from the end, which this can be done) 1.5 cm back fro the wire end. Then one holds the wire and pulls at the end of the wire. If you did it right, and pull enough, the plastic covering comes off. It is called stripping the wire.
Now choose the connectors that matches the gauge wire. Place each trimmed wire end into the opposite ends of the connector. Now with the wires in, squeeze the middle section as hard as you can. This joins the wires ends in a electical connecting joiner. Now lightly heat the the connector with a lighter and it will shrink, (aka heat wrap) making it a water proof connection. You must also find some way to secure/divert the wire so that they do not chafe anew.
