ive been reading a few posts when they say trigger wire is this the wire on cranking it powers the relay if so i should be able to use this as a switch live when not cranking theres no power to the pump am i on about the same thing if so finding this wire shouldnt be a problem i can find this with a test light on the old pump relay when cranking the rest of the wireing the relay is straight forward earth supply from bat ect what amp rating relay should i use and what size fuse should i be running im guna use a bit of beefey wire some recon 17amp wire others 30amp i was reading an old post by glenn a sparky had wired his swithed live fom the ignition but as soon as he turned it on the pump was going all the time is yours still the same thanks in advance ray