I decided to up date the factory radio in my Chevy with a new one. During install, I blew the radio fuse and lost power. Replaced the fuse and continued with install. After I was done, the radio worked great but I lost my temp and fuel gauges. These are the only gauges not working in the cluster. The fuse powers the whole cluster so that isn't the issue. The cluster is plugged in. I removed new radio and installed the old one, gauges still don't work. What are the chances two stepper motors went out at the same time? Does anyone have trouble shooting schematics/values to test gauges or pins?