starter wiring
John it sounds like your ignition feed from switch is wrong, the accessory feed connection loses it's connection during cranking which is why car radio switches off momentarily during cranking. If you test your switch output during cranking you should be able to transfer the connection to the one that stays live whilst cranking. The push button starter will also work if you prefer, I would run it through a relay to protect your switch.
Good luck mate, does the motor sound gooooooooood. Brian.
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