Originally Posted by JDA_BTR
Also on my drawings, the ground from the strobe goes to the landing light where it connects to the ground on the light; that yellow wire goes to the wing root and to ground. So the strobe and landing light share a wing root ground line. Is that how you had it originally? There is also a white wire at the landing light that is unused in my configuration (don't use the landing light control line) and this runs back to the wing root too. I suppose you could use that for a separate ground line or something else.
I might use that pin on the connector to take the stall switch, free up a pin in the other connector for the GMU and GTP, and make it all work. I think that if I float the shield ground from the GTP the same way the shield ground is floated from the GMU the wiring can work fine.
I recall now that the OAT cable was long enough to run all the way from the panel to the wing. If I ever have to take the wing off it should be easy enough to remove the probe from the wing.
I just piggybacked the strobe ground onto the landing light ground and that worked fine. The earlier drawings had the strobe grounded at the wing tip.
No pitot heat yet but plan to add soon (made a mistake not adding it originally)