Discover how to install the latest Polaris RZR accessory for your side by side. This video will show you how to install a new harness to your rzr. You don’t have to be a professional mechanic to perform the modifications to your RZR. This quick video gives you a overview on how to install the harness. Whether you own a Polaris RZR 4 or a Polaris RZR S, view this video to learn how to add the accessories you want to your machine.