Looking for some suggestions. I have an 08 automatic TL Type S. For the last 2 days when I turn the ignition there are a series of rapid clicks and all the lights blink rapidly but wouldn't start. After a couple of attempts I moved it to to neutral and it finally turned on.
Battery is 2 years old, all the lights backup camera work fine, only radio doesn't work.

I don't know if its the battery, starter, or something with the transmission? Also I tried both keys and the result is the same

 

Test your battery and alternator with your multimeter. If everything flashes, it's likely one or the other.

 

Awesome! Thank you! I will try that tonight