12V relay back feed

[Millsner]

Hello, new to forum.  Trying to wire up an override switch for my electric fans on my hot rod but for some reason I keep getting back feed from the battery circuit to the ignition circuit on my override relay.  I can tell the back feed is coming from the 85/86 side of the override relay as when either side of this is unplugged, the back feed stops.  Also if I unplug the 30 on the override relay this will also stop the back feed. Looking for some help on how to properly wire this up.  I want the fans to work on ignition normally but when i push the fan override switch, I would like that fan relay to then be powered off of battery power.  I have attached a quick schematic.

[Terry Bites]

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