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: Place to wire 12v accessory only when ignition on? jasonesmith12 03-06-2005, 04:12 PM The response to the other question was so quick here is another. I am trying to wire an aux fuel pump so that it will only be live when the ignition is on. Is there already a fuse available for this? garyk211 03-06-2005, 04:20 PM Use an inline fuse holder on the brown wire under dash. jholly 03-06-2005, 05:53 PM Little fuse makes a adapter called add-a-circuit. I got mine at Autozone, seen them in PepBoys, never saw them in Kragen. You pull out a fuse, put the orignal one back in and there is place for a second fuse and a pigtail to hook it up. It is good for 10a which should handle your lift pump. For wiring diagrams go to www.gmupfitter.com. There are several ignition fused circuits that should work. If you search for jpblock's lift pump thread he has a picture of the add-a-circuit Jim | ||