I have done a search and now I am even more confused. I bought an autogauge oil temp gauge from halfords. When AMD went to fit it they said i need some sort of sump plug sender which didnt come with it. What is the part I exactly need and are these sposed to come with the gauge. I have no idea where to get this part or the size needed. Please help as I have Had it fitted but now hooked up other than to the electrics.