OK, work with me here. I think I figured out my problem, thanks to extensive searching on the old site.
What I did was what I thought I was doing which was to "tap into the light blue wire" on the harness and wire to a momentary ON switch, the other side of switch to ground.
I did that. What I did exactly was splice a wire into the light blue wire going into the card harness, which I wired to the switch, other side to good ground.
After re-re-re-reading the threads, it seems like I should have spliced into the light blue wire and then pulled the light blue wire from the harness. Correct? As it is now, there are 2 wires going into the harness.
Tell me I'm sane here.
My goal is to utilize the relay, the wait light, and the card, but have manual control of the glow plugs firing.
As a general matter, a link to the old cucv forum with the following code would be a good addition as well with instructions to put this into Google:
[search term] site:
View Forum - CUCV :: Steel Soldiers :: Military Vehicles Supersite
Also as a general forum matter, enabling the vbulletin "insert image from link" button on posts would be really helpful for re-posting embedded images that already exist on the web.
Any feedback is greatly appreciated.