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Thread: 4th Gen RAM Truck infotainment System?

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    CARAM's Avatar

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    4th Gen RAM Truck infotainment System?

    Howdy Friends!

    My 2018 2500 stopped retaining the radio station presets after the ignition is turned off.

    Does anyone know where the constant power source is to retain radio memory?


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    I WILL STAND! AK Bob's Avatar

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    Re: 4th Gen RAM Truck infotainment System?

    I don’t know if this will help, but the wiring diagram for my 2014 shows the radio is powered all the time via a 20A fuse from the battery.

    See attached diagram and fuse location.



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    2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. Oil Bypass Filter, Fuel Filtration Kit, Cold Air Intake, City Diesel Actuator and 50 Gallon Aux Fuel Tank.

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    CARAM's Avatar

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    Re: 4th Gen RAM Truck infotainment System?

    Thank you for all the information welcome; it will give me a place to start.


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    CARAM's Avatar

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    Re: 4th Gen RAM Truck infotainment System?

    FYI: if anyone runs into this problem where your factory radio won’t retain radio stations in memory, the dealer updates your 4th Gen head unit to correct the problem.


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    MOD watersupply189's Avatar

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    Re: 4th Gen RAM Truck infotainment System?

    Quote Originally Posted by CARAM View Post
    FYI: if anyone runs into this problem where your factory radio won’t retain radio stations in memory, the dealer updates your 4th Gen head unit to correct the problem.

    Sent from my iPhone using Tapatalk
    Thanks for the info.

    I had the same thing happen on my 2019 Charger Scat Pack.

    The dealership tried updating it, and it would work for a day or so, then back to losing presets and falling back two hours in time.

    I ended up just replacing the whole unit.

    He said he had seen many of these units replaced for the same issues.


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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  11. Top Of Page | #6
    CARAM's Avatar

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    4th Gen RAM Truck infotainment System?

    After I could not determine why my memory on my radio head unit would not retain anything in memory, I went to the dealership.

    They did an update on the radio, and it resolved the issue.


    Sent from my iPhone using Tapatalk


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  13. Top Of Page | #7
    MOD watersupply189's Avatar

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    Re: 4th Gen RAM Truck infotainment System?

    Quote Originally Posted by CARAM View Post
    After I could not determine why my memory on my radio head unit would not retain anything in memory, I went to the dealership.

    They did an update on the radio, and it resolved the issue.

    Sent from my iPhone using Tapatalk
    Thanks for the update, and glad they got it resolved for you.


    2016 Ram Laramie 3500, G56, 6.7, CC, 4x4

    2016 RAM 3500 4x4 Laramie Crew Cab
    Cummins,G56, Rough Country level, Morimoto LED fog lights, LED headlights, Lund Attitude Steps sprayed with Line-X, DRL's Activated, 35x12.50R18 Falken Wildpeak ATW3, Fuel Vapor Wheels Matte Black w/Dark Tint, A.R.E. Truck cap and swing boxes

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