the headunits are universal ... that's why you should buy the wire harness specifically for your car. it's not a mandatory thing, but it's recomended to have a clean and safe install. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gifI'm surprised the HU's don't come with one, or do you need a specific harness for most cars?