I have installed my light like cray has, got it all down and all working, was messing with the ignition switch and some of the toggle switches, when I turn the key on the gas gauge comes on and show fuel in tank, all well so far, now just playin with toggle switches (aerator, bilge and navigation light) turn on bilge, all is fine, aerator all is fine but when I turn on the nav light it is killin the power to the gas gauge, it falls back to E just like it has had the ignition switch turned off. so I figured it was something I did in my wiring up the light on the dash disconnected that out of line and still same thing, nav lights kills power to fuel gauge, so I look and it appears the power is jumpered from nav to fuel gauge, I clip the wire and ran both directly to power source (purple wire) and still when I turn on the nav lights it kills power to fuel gauge is this normal ???