Help - Blower Motor Wiring

I just replaced my underdash harness. The old one was "customized" and I had a short somewhere that melted the ignition wire. New harness and ignition swich are in and the car fires right up.

Two issues:

1. The old ignition switch had an orange wire that ran to to gear selector light on the column. The new one has a black wire in that location on the connector. Do I just splice the original orange wire into that black wire to get power to the light, or am I missing something?

2. My Blower motor will not work with the new harness. I think it is a ground issue. The old harness had a spliced ground that ran from the brown wire that is attached to the bracket between the heater core tubes and was screwed to the dash.

What should the connections be? The harness plugs into the resistor that
controls low & high setting - ok. There is a black wire that is coming from the front of the motor. What should that be attached to? Also that brown wire between the heaer core tubes, Where should that be?

Any help would be greatly appreciated.

Pete