ignition switch in "acc position

[rolls runner]

Its a 2013 sr5. What is that hum that sounds like a fan running when the switch is in that position?
thanks,
dave

 

[Ducmonsta]

 

[cbreze]

Also curious as I get this in my '12 SR5.

 

[kevinpt]

Its a 2013 sr5. What is that hum that sounds like a fan running when the switch is in that position?
thanks,
dave

i can hear my nav unit fan at times in my 4th gen