What is this wire and plug for??? (Pic)

[iMarshall]

Under the hood of my '13 Tradesman Crew I have this black plug with red tab mounted just above the firewall on the passenger side... Can anyone tell me what it is for?

 

[SilverStreak88]

Mopar nitrous solenoid.

 

[Jarhead57]

Thats where you plug in the under the hood light.

 

[Rzrman328]

Under the hood of my '13 Tradesman Crew I have this black plug with red tab mounted just above the firewall on the passenger side... Can anyone tell me what it is for?

Ha...almost posted this question a month ago...forgot all about it.