Simplify speaker wire connections when adding an aftermarket amplifier to select Toyota vehicles with our Speaker Connection Harness. This 18-inch harness features two variant plug-and-play connections (10-Pin & 12-Pin) which match both the original vehicles amplifier as well as speaker connections. Add amplifiers easily with no need to cut or modify the vehicle’s original wiring. Please Note: although this product can be used for any installations requiring 'plug-and-play' speaker wire connections, this product can be used with the AP4-TY11 AmpPRO module. This harness is for vehicles with factory amplified systems only. Vehicle Applications Toyota Avalon 2005-2010 Toyota Camry 2007-2011 Toyota Corolla 2009-2011 Toyota Highlander 2008-2013 Toyota Prius 2006-2011 Toyota RAV4 2006-2011 Toyota Tacoma 2009-2011 Toyota Tacoma 2018-2021 Toyota Tundra 2007-2021