I used these from jaycar for my boost gauge and they worked fine. Just replaced my cig lighter fuse with one of these (10amp) and connected the gauge. Remember to add another in-line fuse if you don't know which way the power is flowing (I.e. if the tap is before or after the fuse in the circuit).
http://www.jaycar.com.au/productView...p;form=KEYWORD
If that link doesn't work, try typing "fuse tap" into the jaycar search box, should get you there.
Good luck
http://www.jaycar.com.au/products_up...arge_13407.jpg
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