Hi idle setting?

[2021Ram3500]

2021 Ram 3500 6.4 GAS engine. My previous diesel truck had a hidden wire that you could hook up to a switch to raise the idle to around 1500 rpm, it was great when sitting for long periods in the hot SoCal desert sun. Is there a setting or hidden wire under the dash of the 6.4 gas engine that would do the same thing?

Yes I did search but I'm not very good at it so sorry if this has been discussed before.

 

[18CrewDually]

The RAM diesel of today you set high idle with the cruise control buttons. Turn it on and hit set. Then bump it up. See if that works for your gasser.

 

[KKBB]

The RAM diesel of today you set high idle with the cruise control buttons. Turn it on and hit set. Then bump it up. See if that works for your gasser.

Correct for the diesel. Use cruise control...doesn't work on the gas. I guess I should say it doesn't work on my 2019 6.4, maybe they changed something on newer models.