Not sure. It might only be available later. If it doesn't come up if you search "wiring" in the crafting UI, then maybe it unlocks when you get Sparrow class.
It's unlocked from the terminal in the second (?) ship upgrade, same place you get the employer's terminal.
Thats not correct. At least not in the game version im playing (unstable atm). A wirestation is craftable at the robotic crafting table. Its not in the research station you get from ship upgrades.
Yeah, it was in the Research Station for a while, looks like it's changed since I made one for my ship.
I think it should be moved back to the research station, it made more sense there. The research station to me seems like where all the side/extra stuff should be.