Use this adapter harness to replace your factory speakers with aftermarket speakers without having to cut the vehicle speaker wiring and connector. Real time saver and also prevents electrical shorts and loose wiring by providing a secure connection. Plastic insulated speaker connection ends to prevent short-outs to the door metal. Includes 2 pairs for four doors- 4 speaker harnesses. The following app guide is from a reliable source but if you want to be sure, double check speaker connections just in case. Might work with more vehicles (usually new models than below list) but we have not verified- if you can email us if you can verify we can add to the list. Wire made for Chevrolet : Camaro 2010-2018, Colorado 2015-2018, Cruze 2011-2019, Silverado 1500 2014-2019, Silverado 2500/3500 2015-2019, Spark 2016-2018, Suburban 2015-2017, Tahoe 2015-2018, Traverse 2018-2019; GMC: Canyon 2015-2018, Sierra 1500 2014-2019, Sierra 2500/3500 2015-2019, Yukon / Yukon XL 2015-2017