Uconnect 4 - 8.4in to Uconnect 4 - 12in Asking for Help

[JaySingh]

Hello Everyone, I am new to this forum. I have a 2019 Ram 1500 BigHorn.

I need some assistance on what wiring harness i would need to do this upgrade of screen size. If anyone has some information on this upgrade please help a brother out.

I already have the screen, Vent Bezel and AlfaOBD coming in this week. Just need to get the correct harness.

 

[Bubba78]

Do you have factory gps, factory satellite radio, and wifi, if yes, then new radio module should work fine. if not, then you wont have those options without adding the antennas.

When you got the screen, did you get a raido module as well? The Uconnect 4 (8.4 inch screen) radio will not work with the Uconnect 4 12 inch screen.

The screen you purchased, should have 2 connectors on on it, a white video (LDVS) connector and either a gray or black connector (HVAC controls/hazzard lights), you need the black connector if you are installing the Uconnect 4 12in radio module.

If you have the screen with the black connector, AND you have the Uconnect 4 radio module, you will probably need the HVAC adaptor, because without it, the screen will not light up and your hazzard lights will just flash once installed. I will dig up the link to the adaptor I purchased from Infotainment.com

After you install the new screen and radio module, you will need alfaOBD to configire the BCM to know you have removed the physical HVAC controls and have added the double stack screen. If you don't have alphaOBD, there are multiple threads on how to do this.

Not sure if you still needing any help, if not, great, if you do, I hope this helps.

Good luck