518 TRANS OD/LU WIRING AND SWITCHES

guys just getting to wiring up my 518 swap with toggle switches. I have switched power going to the center pin on the trans connector is it normal to have 12 volts coming back on the overdrive and lockup wires with the key in the acc position?Also will you hear the OD solenoid click off/on without the vehicle running. This should be real simple but can't get my head around what I should and shouldn't see as far as conditions. My thoughts where switched 12v to center pin on trans front pin from trans(OD) to toggle other side of toggle to ground, rear pin on trans (LU) to other toggle switch and other side of this toggle to ground. Also does it matter if you use 2 or 3 position toggle switches?
Thanks mike