This fit great in my 2003 Mazda 6. I had to trim a small amount of plastic from the mounting plate for the climate control knob. Before trimming it caused the defrost button to become stuck. The radio harness included did fit my Alpine ilx-w650 but the actual wires were not in the correct position within the plug. I think this is to be expected with a universal plug. Overall, I’m very pleased for $49 especially when some of the others I looked at were in the $200 price range.