Swapped out the original SV-ADSB-472 with the replacement unit that Dynon sent me (my serial number was among those that had a potential problem with traffic dropping out). Sent the old one back to Dynon.
Drilled a one inch hole in the lower LH side of the firewall and installed a fireproof pass-through fitting. Rerouted the wires for the starter contactor energize, the VPX starter annunciator light and starter engaged. LED light down to combine them with the wire bundle that runs down the LH gear tower and the forward to the firewall. Re-string tied the bundles. Spliced the wires for the VPX starter annunciator and starter engaged LED together just aft of the firewall. Ran the main battery cable, VPX power supply wire, contactor engage and starter annunciator wires through the pass through and secured the wires and cables.