Basic run down:
I forgot to look up the pin out for the transmission connector.
Power to the trans runs through the relay (should have labeled it R1)...Hitting the brake pedal (brake lights) energizes the relay dropping power to the transmission and therefore disengaging both LU and OD.
Ground for LU and OD run through two micro switches on the shifter that are only closed only when the shifter is in DRIVE...
OD toggle switch remains closed most of the time so it will shift to OD shortly after grabbing 3rd gear, or be left off if desired. This switch will be on the column drop to avoid putting holes in the dash, even if it's not terribly convenient. As will an LED indicator for LU.
LU push button feeds "power" (we are trying to get this to a ground eventually) to a latching relay (R2 as it is not labeled)-the press of the button energizes and then holds power it self until power is removed, via tapping the brakes or moving the shift lever. The ground side will go prior to the OD toggle- this will require OD to be activated before LU and also interrupt the ground for the latching relay, turning both OD and LU off at the same time.
Clear as mud? Make any sense or am I way off base? Any harm with feeding power to the trans like that? Do I need to drop voltage down?
I may have screwed up R2.