I need to replace my ignition switch. The problem I have is it's a 64 Merc 500 and the new switches wont fit in the gear shift box. I bought a OMC switch it has the same 6 wire set up. Now the wireing it has 6. Witch whire goes with the Magneto/Ingnition/Battery/Start/Accessory<br />Blue- Choke<br />Black-<br />Red-<br />Yellow-<br />White-<br />Green-<br />Thanks for any help 