Yes. more that likely if you look at the stereo it will give you a colour code as to what colour wires do what. if they dont then a simple google search for a stereo wiring diagram for each vehicle will be even better. if its just your speakers that are messed up then a neat trick to remember is if you take a AA battery and put the + side of the battery to the + side of a speaker wire and the - to the - then that speaker will come out. If the poles are backwards then the speaker will go in. good luck