Does anyone know if the wiring is the same between the variants of center console layouts? I have a 18 Silverado LT that came with a center console but with only 3 outputs: 2 separate 12v plugs and a dual USB. I noticed the Denali and LTZ have an additional 120v outlet. I would like to add the 120v. Is the wiring for the outlet present just left unused thus making things a simple plug and play? Sent from my iPhone using Tapatalk