Have a 2013 Frontier (bought new) w/o navigation. Until about 6 months ago Bluetooth worked fine, then stop showing names, only numbers. Yesterday it stopped understanding any of my voice command, I say home and it responds help, I say a name and it says command not recognized. Today I deleted and re-paired my phone it recognizes the phone but still doesn't understand my voice command. I have an iPhone 7, any advice would be greatly appreciated. Thanks in advance for any and all help.