2 Speaker Adapters and Speaker Wire Harness. Front door speaker adapters. Includes one pair to install 2 speakers. Save time when installing aftermarket speakers. Speeds up installation time. Made from high grade plastic for a long lasting secure fit and corrosion resistance. Made to install most 5.25", 6", 6.5", 6.75" speakers. Big size speakers might require trimming out the speaker adapter. Speaker wire harness speeds up install time and prevents cutting into the factory wiring. Extra pair of speaker adapters included for rear speaker installation. Includes: 1. Front speaker brackets for a pair of speakers 2. 2 pair of speaker wire harnesses for front and rear speaker install Compatible Vehicles: Made for Chevrolet: Blazer 1995-2005, S10 Pickup 1994-2004; GMC: Jimmy 1995-2001, Sonoma 1994-2004