2005 Scion tC OE Wiring Harnesses & Stereo Adapters Scion tC 2005, Aftermarket Radio Wiring Harness by Metra®, with OEM Plug. For aftermarket stereo. Metra preassembled wiring harnesses can make your car stereo installation seamless, or at least a 2005 Scion tC engine wire harness - TLS Auto Recycling This is a quality, recycled 2005 Scion Tc Engine Wire Harness. This part has been thoroughly inspected for quality assurance and includes a standard 1 YEAR warranty! Extended warranties are also available for purchase; please call for details.