The Scosche STK1 Car Speaker Installation Kit will facilitate your stereo upgrade. It comes with everything needed for a variety of applications. The speaker terminal kit includes speaker quick disconnects for a range of wire gauges. They each have a platinum finish for strong connections performance and durability. The car installation kit has amplifier barrier spade terminals to correspond with the wires in your stereo kit. Use our handy online tool to select the exact kits and equipment you need. Some vehicle stereos require a wire harness or antenna adapter.