Ok... Not sure what I did here. I have the factory Nav in my truck. I'm still trying to fix my TPMS so I hooked up OTC Genisys scan tool to it today to see what I could see/clear/fix. I can get into the Smart Junction Box and read the data, and the codes which there's 2 of for the TPMS but when I try to clear those it won't clear them. Also when I got done, my radio won't work now. If I push the power button the clock in upper rh corner shows for a few seconds then the screen goes back black. Can I just unhook battery and reset or have I killed it?