one way power

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Jpaytoncfd

Joined Mar 11, 2009
10
I need to add in a second power imput for my accesories but the ign 1 and acc are on the same output. is there something I can put inline after the out put splits that will prevent the secondary power source from powering the ign1? I have uploaded the schematic and noted what I mean. the note at the bottom says "when the secondary input is active only the acc and orange outputs should be charged. Without this they would all be charged and the relay would be deactivated."
 

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