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Factory OEM SiriusXM nearly working in Tesla 2022 Model 3
- Thread starter sparkywatts
- Start date
I noticed that the "up next" section disappeared for Spotify on 2022.16.3. What version do you have now, and what version were you on before?
This is an message from quite awhile ago, but I wanted to let you know that I've ordered this adapter and will try it on my 1143716-00-c (Model X) tuner. I didn't realize that the XM connector was ALSO a FAKRA, and my purchased salvage tuner was missing the keyed outside connector plastic part.
I'm hopeful it will make a difference, but I'm not sure if it will because I AM getting data from the satellite connection in the form of song title and artist listed in the MCU when tuning to a channel. I would think if the connection wasn't good, I wouldn't even get this.
I'm still willing to give it a shot and I'll report back when I get the the adapter cable.
I'll let you know in 2 days when the adapter for female FAKRA to male MCX comes in!
Finally got an extra FM amp today; right off the bat I took off these nubs so it could lay flat.
Decided to take a picture of these for funsies.
Unfortunately, there is next to no space for the amplifier to sit anywhere. It's plenty thin without the case but I'm worried about having exposed voltage around a tuner. The best I could get was laying like this; maybe using a piece of double sided tape to adhere it. But that leaves the big grounding lead floating.. Not great. Further up there is more space.
But the antenna ribbon cable won't reach. In general it's a PITA to connect and it seems to make no difference to the FM signal so I think I'm going to leave it dangling in there. I guess if we wanted to be real try-hards I could get a caliper and get the measurements for a 3D printed model of the antenna receptacle for an adapter.
Decided to take a picture of these for funsies.
Unfortunately, there is next to no space for the amplifier to sit anywhere. It's plenty thin without the case but I'm worried about having exposed voltage around a tuner. The best I could get was laying like this; maybe using a piece of double sided tape to adhere it. But that leaves the big grounding lead floating.. Not great. Further up there is more space.
But the antenna ribbon cable won't reach. In general it's a PITA to connect and it seems to make no difference to the FM signal so I think I'm going to leave it dangling in there. I guess if we wanted to be real try-hards I could get a caliper and get the measurements for a 3D printed model of the antenna receptacle for an adapter.
if you're not connecting the ribbon cable is there even a reason to having the second amp up there? i thought that was the entire reason behind trying to add a second amp...
Yeah I actually had good reception with just 1 antenna attached and surprisingly decent reception when I had my XM FM direct adapter connected.
Correct, the second amp is not installed or up there. I was just trying to find viable positions for it and there really weren't any.
It's connected to a wire harness which finds a ground a little further down.
That was my thinking as well, or something akin to that, but unplugging the filter had no effect on my satellite signal or audio.
So if we assume the documentation is correct for Tesla, there was no change in circuitry from late 2020 to the beginning of 2022. I've been looking at the circuit diagrams closely, and I don't know if it's actually significant, but I think the Shanghai circuit diagrams actually correspond to the AMD MCU, as there is a dedicated "gaming" power circuit.
In previous models the green wire connects to pin 12 and the yellow to pin 11:
But in the Shanghai models the pins are switched:
If we assume that this is only corresponding to the Chinese Model 3, then this is less than significant. Also, AFAIK switching wires on a twisted pair connection isn't going to give the behavior we are observing in the 2022 models. But this whole saga is a bit crazy, with Sirius XM libraries being already installed in the Model 3 OS so who knows, maybe it has weird failure modes too? Anyone feel confident enough to switch pins around? I would but my wires are already mangled.
EDIT: Note the green wire still corresponds to ETH_P and yellow to ETH_N so don't go crazy messing up your harness for this silly hail-mary.
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random thought: has anyone with MCU3 tried just disconnecting the FM antenna entirely (i.e. leave the white fakra disconnected) with the satellite antenna connected, and see if that gets you sound from the satellite? that would be a worthwhile test i think with either version of the satellite tuner...would help rule out something like the FM signal being too strong (although that sounds crazy to me).
Did this. Just picks up static as if you were on FM with no antenna. I even tried plugging the XM antenna into both slots of the dual fakra with and without another XM antenna connected to the proper spot, nothing.
I suspect it's a missing signal or a source flipping issue. Once you go from a streaming channel or FM channel to an XM channel the music pauses and resumes the FM channel. In the same going from an XM channel back to streaming or FM it pauses and then resumes the last FM channel or streaming music. Vs in the model Y Intel it it still pauses but flips to the appropriate source and audio.
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This is what I suspect too. The good news (just barely) is that we know the tuner is capable of receiving the "change source" command. Meaning if we can capture what that looks like on the CANbus (from a Model S or Model X), and use an external source to inject that CANbus, the MCU will simply play the audio stream it recieves. This is a convoluted solution, but possible with the right info and parts.
thats my guess, since it works with both MY and M3 intel models and hasn't fully worked in OP or my M3 AMD. But as @crackers8199 has stated it could be a B vs "broken" C variant issue, i can't test that bc i can't seem to find a decently priced C variant tuner.
If you are where your location says you are, there is a SC in Temecula which is not very far from Lake Elsinore.
this is why I'm hesitant to do this unless we can get the tuner directly from Tesla. it's the only way to guarantee we get a working one.
now that I know there's one somewhat nearby me, I might give them a shot...
