How to keep audio or radio on when switch off the engine

[Victor Mo Mo]

I was having GS200T and would like to know how can I keep radio on when I turn off the engine, many thanks 

[RX400h]

Typically, you can do this by NOT stepping on the brake and then pushing the start button, two times. Push it again without stepping on the brake pedal and the radio will turn off.

[Victor Mo Mo]

Which mean it have to totally switch off the engine then start again, I tried to put N gear, then press switch off, P mode, the audio is still on but it shown to power off. I usually did it in Toyota and it works but not Lexus.

[RX400h]

Did you review your owner's manual?