This is a 1982 Datsun 28zx

What is your question?

I have a 2 seater 280zx Datsun neither the air nor heat work. The fan do not come on. The Nissan place toll me I need a A/C control head and temperature trimmer. They no longer have the part from Nissan and I cannot locate the part at a junk yard or anywhere. What can I do? Please help. The car look like new