rotary808

Sup everyone, i got a metra kit yesterday n a nice double din by sony, and almost everything works perfect, except the ac. its jus blowing hot air, n only a little bit, n both lights on the bottow button r on n the defroster button on the right n nothin really seems to do ne thing, but i can still use the buttons to change the settings on the lcd screen. So idk wats up, if ne one can help, please, i could use it