Hey guys, I have just recently replaced the radiator in my 95 Prelude SI (old one had a crack along the top). Anyway I put everything back together today and go to run things over and everything in the car works except for the AC. When I put the AC on, the defrost light blinks off and on for some reason. Weird because the AC worked fine before... Only other thing I did besides replace the radiator was swap out the old Honda headunit with a Kenwood MP3 player. I soldered all the wire connectors and heat shrinked them. Anyone have any ideas why the AC wouldn't work and the defrost light blinks on and off whenever the AC button is pushed in. If it helps, my engine also seems to be making a winding noise whenever the AC is turned on, (sort of like the car is surging). When you turn the AC off, the engine idles fine.