ACDelco 25798963 GM Original Equipment 3.5 in Radio Speaker

here we have the GM Chevrolet Cadillac Corvette Pontiac wire harnesses depending on the year they go different years the connectors change there was the early years I'd say through the early early or early 80s through mid 90s you had this style where there was either one main great connector that goes into the back of the stereo this can be an all in one piece connector or it can be a connector that is in three pieces usually the black white blue connectors along with a second to wire connector again the aftermarket wire harness gives you the universal colors and these are all keyed so they only go into this wire harness one way so they fit one way or if you had the single gray plug this one still fits as well and this will again give you your Universal colors to plug in the aftermarket stereo another style GM connector is a larger gray plug and there is an aftermarket harness with Univ