Next, we are ready to remove the old stereo from our car. You will also get a Car Stereo Wiring Diagram either printed on the stereo itself or on a separate paper. Most new car stereos come with all the necessary wires, adapters and accessories. If you are lucky and you have access to a demo, then it will definitely help you in making a purchase. Some store owners tend to have a sample setup for testing stereos, speakers and subwoofers. Shortlist a couple of them and if possible, try to get a demo from a store.
There are several brands such as Sony, Kenwood, Pioneer, JBL, Apline, JCV and many more. If you are planning to upgrade your car stereo, then spend some time visiting car accessory stores and also do some research online.
Car Stereo Wiring Diagram / Wire Color Guide.