I wanted to convert my car to non-a/c so I installed the box under the hood, the box under the dash also known as the heater core box, I have also installed non-a/c controls.the problem is that the wiring harness inside the car is for an ac equipped setup.the harness plugs right into the heater controls but the control do not come on. what do I do next??????this really should be a tech atricle b/c I am sure this is a common question even though I could not find anything in the search.