Professional pure copper core made, which keeps excellent conductivity and safe use. RED WOLF car radio stereo harness is used to replace factory or broken stereo harness. Easy to install. Without cutting any OEM wire harness. The use of heat shrinkable tube connection has a better effect. RED WOLF radio harness replacement for Chevrolet: Avalanche(2003-2006),Cavalier(2000-2005),Colorado(2004-2012),E, 2001 - 2002 Express Van, Impala(2000-2005), Malibu (2004-2005) Classic Models ONLY, Malibu (2000-2003), Monte Carlo (2000-2005), Silverado (2007) Classic Models ONLY, Silverado (2003,2004,2006), SSR (2003-2006), Suburban (2003-2006), Tahoe (2003-2006 Non-Bose), Trailblazer (2002-2009), Uplander (2005-2008), 2000 - 2005 Venture Van, 2002 - 2005 Blazer, 2005 - 2009 Corvette. 2004 Savana stereo wiring compatible with GMC Sierra (2003-2007), GMC Canyon (2004-2012), GMC Envoy (2007-2009), GMC Envoy (2002-2006), GMC Savana (2003-2007) Full Size Van RED WOLF, GMC Yukon / Yukon XL (2003-2006). 2003 Cavalier car stereo radio wiring harness is NOT COMPATIBLE WITH AMP SYSTEMS LIKE BOSE, INFINITY, etc.. Red wiring is not for all models, but if the OEM radio harness of your vehicle does not have an ignition wire, the aftermarket stereo cannot be turned off/on through the OEM radio harness. To solve this problem, you need to get a 12v power supply from the ignition by running the red cable separately from the factory radio harness.