MY22 Adding SiriusXM

[Wallyo]

Just a bit more info.

https://www.xm-radio-satellite.com/...-radio-antenna-when-you-dont-need-one-for-gps

Insight as to how Xm can be used for gps.

https://www.gpsworld.com/trimble-rtx-corrections-now-transmitted-through-sirius-xm/

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[dhageremtp]

Why would you have to change anything with the TCU?

As XLT 22 said folks are making this more complicated then it needs to be ( except for those adding nav which has its own issues). You want Xm

Make the needed Apim and ACM changes.

Install an Xm antenna.

Add a fraka extension cable up front.

Strip out and plug in the gps antenna place it in the headliner .

Or
Just add a xm antenna as I did up front.

Done enjoy your XM!

In a vehicle that had the Xm/Nav delete, the TCU is not looking to the APIM for GPS, it is wired to the antenna. if you replace the factory antenna with an XM enabled, the TCU then does not have the connection for GPS in the upper right corner of the cab, it then uses cellular to get it data. It throws a DTC that it is not getting GPS signal. But if you write the first line in the TCU to look at the APIM for the GPS signal, it corrects the DTC. Then its nearly back to stock as it would have come from the factory.

I dont think its just about people making it more complicated than it needs to be. The nice thing about this forum is it gives multiple ways for people to modify and change what they want. Your solution works for you, but may not be what someone else wants to do. This option give a more factory solution. Cheers!

 

[Wallyo]

In a vehicle that had the Xm/Nav delete, the TCU is not looking to the APIM for GPS, it is wired to the antenna. if you replace the factory antenna with an XM enabled, the TCU then does not have the connection for GPS in the upper right corner of the cab, it then uses cellular to get it data. It throws a DTC that it is not getting GPS signal. But if you write the first line in the TCU to look at the APIM for the GPS signal, it corrects the DTC. Then its nearly back to stock as it would have come from the factory.

I dont think its just about people making it more complicated than it needs to be. The nice thing about this forum is it gives multiple ways for people to modify and change what they want. Your solution works for you, but may not be what someone else wants to do. This option give a more factory solution. Cheers!

Ok but are you then getting an actual GPS location or are you telling the system by doing this that hey go ahead and just use the cellular?


By my saying folks are making this more complicated I was reacting to the below quote which sounded as though the DTC problem was not solved and required further analysis?



“ I do have a DTC for the TCU and Jesse was working with Forscan to get a version that will let us write to the TCU to change the antennae input. “

But it now sounds as though the DTC problem is solved?

But if it is still not providing GPS seem stripping the antenna solves this issue. If changing the TCU provides a GPS signal to the the TCU that it can process then there are now 2 solutions to the same issue.

 

[Texas2022XLT]

In a vehicle that had the Xm/Nav delete, the TCU is not looking to the APIM for GPS, it is wired to the antenna. if you replace the factory antenna with an XM enabled, the TCU then does not have the connection for GPS in the upper right corner of the cab, it then uses cellular to get it data. It throws a DTC that it is not getting GPS signal. But if you write the first line in the TCU to look at the APIM for the GPS signal, it corrects the DTC. Then its nearly back to stock as it would have come from the factory.

I dont think its just about people making it more complicated than it needs to be. The nice thing about this forum is it gives multiple ways for people to modify and change what they want. Your solution works for you, but may not be what someone else wants to do. This option give a more factory solution. Cheers!

I'm interested in this to see if I could use it to fix the compass issue.

 

[Rineland]

Yup, got the IPC done and it currently displays "0". I assume once the antenna is connected and providing info that should update. If not, then I may take a look at what @Ranual changed in the GWM to relay that info (I know, I know, be very careful). I may do this anyway because one thing I miss from my '21 that had navigation and XM was the turn-by-turn prompts in the IPC when using Apple Maps via CarPlay. It seems with the Nav and XM removal, those prompts are also removed from the IPC. I tried changing the second string second digit to "1", which according to the spreadsheet enables turn by turn navigation but nothing pops up. My neighbor picked up an early '22 with nav and XM and I pulled his vin and as-builts. The only other thing different is 720-10-01 xxxx xx4x xxxx, which enables "considerate prompts". Not sure what that is but I'm going to try that next.

Also, on the SiriusXM source, I tested my volume controls and it does change the volume on the screen so I don't seem to have an issue there.



Excellent point. I'm still curious if the single XM antenna and splitter can provide signal to the TCU so I'm going to buy whatever FAKRA adapter (sounds like male to male) to install that between the blue splitter and blue harness to the TCU and see if it works. If not, I'll stick the original GPS antenna to the headliner and just use the splitter to run from the glovebox to the ACM.



Occasionally I'll go into the FordPass app and be greeted with "Unable to locate". It seems that force closing the app and reopening it refreshes the location. Perhaps it's more a matter of the app timing out before it receives the location data from the truck. It always ends up finding it. Now, the compass in the IPC on the other hand.... completely useless.

Following up on my own post regarding the turn-by-turn IPC prompts. By changing 720-05-01 xxxx x1xx xx-- to enable TBT and 720-10-01 xxxx xx4x xx-- I was able to get the turn by turn notifications in the IPC from Apple Maps. This doesn't seem like something that should have been a casualty of the Nav/XM removal, but on my truck it was. Happy to have it back! I'm not sure if both changes are required, I just know that only changing 720-05-01 did not have it show up.

Regarding the compass, I can also confirm that 720-01-01 xxxx xxxx Bx-- removed it from the display so I don't have to look at its incorrectness. Ironically, as I was sitting in the truck making the update, it was indicating the correct direction.

 

[dhageremtp]

Ok but are you then getting an actual GPS location or are you telling the system by doing this that hey go ahead and just use the cellular?


By my saying folks are making this more complicated I was reacting to the below quote which sounded as though the DTC problem was not solved and required further analysis?



“ I do have a DTC for the TCU and Jesse was working with Forscan to get a version that will let us write to the TCU to change the antennae input. “

But it now sounds as though the DTC problem is solved?

But if it is still not providing GPS seem stripping the antenna solves this issue. If changing the TCU provides a GPS signal to the the TCU that it can process then there are now 2 solutions to the same issue.







Current download version of forscan, no you cannot write to the tcu. The beta is in the works, not yet released.

 

[XLT22]

Again, you guys are WAY overthinking this. In nav equipped trucks, there is a change in the APIM “GPS FROM TCU” and in the TCU to route location data through the APIM. If you disable this in the TCU it may get rid of the silent DTC, but then you’re still left with no GPS. That’s why I suggest the antenna disassembly to avoid the DTC and maintain the ability to have accurate GPS location if you don’t go all the way in adding a navigation capable APIM.

 

[XLT22]

Ok but are you then getting an actual GPS location or are you telling the system by doing this that hey go ahead and just use the cellular?


By my saying folks are making this more complicated I was reacting to the below quote which sounded as though the DTC problem was not solved and required further analysis?



“ I do have a DTC for the TCU and Jesse was working with Forscan to get a version that will let us write to the TCU to change the antennae input. “

But it now sounds as though the DTC problem is solved?

But if it is still not providing GPS seem stripping the antenna solves this issue. If changing the TCU provides a GPS signal to the the TCU that it can process then there are now 2 solutions to the same issue.







Current download version of forscan, no you cannot write to the tcu. The beta is in the works, not yet released.

I think some folks may be confusing navigation features with satellite radio. Yes, they’re a factory bundle but if you’re only setting up satellite radio with the antenna swap, there is no way to keep GPS location data unless you reconnect the factory antenna to the body harness plug that routes to the TCU, or go through the trouble of fully retrofitting a navigation capable APIM. The wiring traces are in the OP to clarify this.

 

[gfl22]

i just finished making my sirius undelete permanent. just wanted to thank you guys for the insight on how to get it done.

 

[Rineland]

I wondered the same thing but I don't think on here has tried that yet.

I have not Done It, I am still using an Xm antenna mounted as I described previously in this thread. But as I have read disassembling the non Xm antenna to obtain the gps antenna Is not big issue.
There really is no use for that antenna anymore after buying the Xm antenna.

When you use the xm antenna as per fords design, the front splitter has a box that contains circuitry. How it works I don’t know?
But what it does

Xm signal to ACM

And a nav signal to the Nav Apim via the splitter circuitry

Cellular signal to the TCU via Xm/ cell antenna

With out a Nav Apim not sure how the GPS signal would be processed.

If you try it please report back with the result.

I installed the Ford splitter after the antenna at the headliner and it does indeed work. I had to buy two male-male Fakra cables to plug in to the body harness from the splitter since the splitter outputs are female. I then bought a female-female 12in Fakra cable which runs from the curry plug behind the glovebox to the ACM. SiriusXM works wonderfully and the location in the FordPass app is spot on. I re-enabled the compass in the IPC and even that behaved for a bit swinging from W to SW to S as I made a turn. The next key cycle it seemed to revert back to its default "N" though. I think it's more an issue with how often it communicates with the TCU for the information than anything to do with the antenna.

Many thanks to the OP @XLT22 and the other contributors to this thread for figuring this out and supporting with pictures and part numbers.

 

[XLT22]

Make sure you make the change to the IPC if you want to see what is playing in the instrument screen. See a few post back but below are the changes.

My VIN:720-05-01 0800
Donor VIN: 720-05-01 1810 The one is what makes it work so I went from 0 to 1 - 720-05-01 1800.

I'm curious if anyone actually has the "now playing" from SiriusXM working in the IPC with this change. I took a look at it again and made this change when I first switched on SXM and still only show "Audio off" when selecting satellite radio from the now playing list.

 

[Texas2022XLT]

Working for me and that’s the only change I made to the IPC. Can take a picture if you’d like?

 

[XLT22]

Yea if you don't mind. Strange I can't get it to show up. My as-built is identical to an early 2022 with nav and sirius, just missing the trailer brake controller.

 

[Texas2022XLT]

I will say after I made the change my instrument screen went dark like it rebooted and I had to add the my view selection back after doing the ignition cycling per Forscan.

 

[Texas2022XLT]

Just took some pics sorry there a little blurry with it being dark outside

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