Originally Posted by ponderosajack

I tested it out today:
Drove D5. Parked. Pressed Start/Stop button once to turn off engine. The radio continued to run for 9 minutes, then gave a message it would shut down in 1 minute, and it did shut down at the 10 minute mark.
I pressed the radio power button once. Radio came on for 9 minutes, gave message it would shut down in 1 minute, and it did shut down at the 10 minute mark.
I repeated this 2 more times and got it to run for a total of 30 minutes. I believe it would have repeated more iterations but I had to start the D5 to run an errand.
I don't see this procedure to be a problem if you want to listen to the radio while parked. I believe most modern vehicles will turn off the radio after an amount of time.