Hoping to troubleshoot the AC system

How do you replace it?

Both high beam headlight glass lenses have a hole in them.

What's the average cost to have the convertible top and rear tinted window w/defroster replaced on a 98 Toyota Celica?

high pitch squealing, as soon as the engine starts up the noice comes up but then stops after a few seconds and then again when i turn my air conditioner on and accelerate