If you look at the diagram I emailed, the pink wire take "IGN" power to the dash (for the tach, gen light, brake light, & low fuel light) and to the console connector (C240) for the temp & fuel guage.
I imagine your brake, gen, and low fuel don't work either?
With both groupsw out, I'd imagine it's not a ground problem. You either have a blown fuse or an open on the pink wire. Start by measuring voltage across the fuse with the key on, if not zero fuse is blown. If it is zero, measure voltage from the fuse to ground, should be 12 bet it ain't.
I'd disconnect the console connector and the dash connector (hmmm, the diagram doesn't show a dash connector, sorry I'm weak on 69's) before replacing the fuse. Make sure you have power on the pink wire and the fuse doesn't blow again, the start hooking things back up til the fuse blows.