Metra Turbo Wire Harnesses are innovative products for car radio installations which allow the installer to wire an aftermarket radio into a car without cutting and splicing the factory radio harness. The installer saves time...you save money. Turbo Wires have been color coded using the aftermarket radio industry standards (E.I.A. Color Codes). A handy chart on the back of the package allows the installer to easily make all of the radio's wire connections.