I am planning this summer to convert my ebony cloth interior to a two-tone leather. I recently purchased an OEM climate control unit with the seat heater buttons and I had the following questions if anyone can help;

1. Is the factory wiring harness installed already?

2. If not what is the part number(s)?

3. Will that control unit work with after market heaters?

4. If not does anyone know the part number(s) for the factory heaters?

5. I figured while I have the car ripped apart I was toying with the idea of putting heaters for the rear seats. I was wondering if anyone had done this?

Thanks,
Mike