Completed install of lower, forward support brackets for instrument panel at the lower radio rack. Temp installed terminal block at station 3 just below baggage floor for all power leads from both wings. Positive wires from wings (Nav lights, strobe lights, landing lights, pitot heat ) will terminate at this block. Positive power wires will come out of bottom of block to main/avionics bus. Same for grounds. I will use a terminal block for all ground wires from wings and run one common ground to firewall grounding block.