[rotorwrench]

When you say it will operate without a switch, it's hard to say what switch it will do without. The system is an electric overdrive so it has a lot of switches that it will not work well without. If there is no kick down switch, a switch still has to be used to turn off the system so that the overdrive will drop out above governor on speed or it will not drop out at all and you still have to let off the gas to get it to drop out even after you take power away from the operating solenoid.

They use a relay switch on the firewall to turn the operating solenoid off and on plus the momentary kill of the ignition so you don't have to let off the gas to drop it out after its turned off. You can throw all the switches away except the governor switch and just use a single pole single throw stitch to function the operating solenoid but you lose all the features that make the system easy to use and you have to turn it off and on manually when you want it.

The wiring harnesses and switches are still out there so I don't see a purpose in doing the Rube Goldberg thing. A kick down switch won't break the bank and neither will a new wiring harness.