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Help with the 8.4 with Nav please anyone (solved)

ericcloe

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Getting a little frustrated with the NAV swap. I am not finding much from people who have went from the 5" uconnect in a tradesman to the 8.4 with Nav. I have the touchscreen controls working and can control the air from that. The radio stations tune fine. I can't turn the audio up or down on using the knob or the steering wheel audio controls. I know the speakers work with the unit cause I get audio from the navigation when navigating and I get audio during calls. That all comes through loud and clear. I have been working with Jimmy and he has had me change a few settings on alfaodb but still cant get it to work. The backup camera has never showed up either it says unavailable. I am going on 4 days of messing with this now. I have pulled power a couple time for several hours. I have drove around several times. I have let it sit a a couple of times overnight. Still can't get the knobs to work or the backup camera. Any help or suggestions would be appreciated.
 

ericcloe

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Found that the harness I was using for the upgrade one of the connectors was wired reversed. Fixed the pins and that fixed the issue. The radio now works as expected.
 

BigJim

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I'm curious about how you did your upgrade. Did you get a new screen and nav unit and if so from where? I have the 8.4 but does not have nav and I would like to add it. Any help would be great as I'm not finding much out about this upgrade, everyone seems to want the 12 inch screen which I don't like. Thanks!
 

ericcloe

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I ordered the one with NAV on ebay. It is the step up from the one you have. The 8.4 with nav is called a 4c or UAV code radio
 

BigJim

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Thanks! That never came up on internet searches so I never thought to try Ebay. I'm going to check that out right away! Thanks!!!
 

BigJim

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Well darn, just been over on Ebay and none of the units for sale are for my 2021 truck. Grrrr.... I don't know why I just can't buy the parts from the dealer or a parts yard. Thanks for the advice, maybe in time they will become available for my truck.
 

dmschere

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Do you have the pinout that fixed your screen? I just did the swap and think I have the same issue.
 

garyp

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I ordered the one with NAV on ebay. It is the step up from the one you have. The 8.4 with nav is called a 4c or UAV code radio
i just bought 2021 tradesman with connect 3 with 5 inch screen want a bigger one. anyone have ideas to what i can put in an if i need addionial hardware to buy.. had it only one month looking for plug an play need a model number to buy
 

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