Kenwood KRC-597 - Manual (Page 25)

Setting the timer to turn this unit's power OFF automatically
when Standby mode continues.
Using this setting can save the vehicle's battery power.
Display Setting
"OFF – – –" Power OFF Timer function is OFF.
"OFF 20M" Turns the power OFF after 20
(Original setting) minutes.
"OFF 40M" Turns the power OFF after 40 minutes.
"OFF 60M" Turns the power OFF after 60 minutes.
This setting is done after setting (page 20).
Power OFF Timer
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KRC-597(E)_U.S 03.10.7 6:48 PM Page 25