Harley headphone adapter
The one with the 3 black spacers is a TRRS, which has a mic. The one with 2 black spacers is for a standard set of earbuds without a mic. Which type works with that adapter?
This is why some older Harley wired headsets will not work properly with the new radios.
There are even CarPlay bypass plugs you can buy on Amazon and eBay; these enable CarPlay by effectively putting a jumper between the mic + and -terminals (typically for the passenger) on the radio… this presents a low impedance path on the microphone circuit and fools the radio into thinking there is a wired headset attached.
As you can see fron the pics, all these bypass plugs do is put in a jumper that shorts out the microphone circuit for the passenger. (pins 2 & 3 on connector 280A… and a dead short is extremely low impedance)
The upside to using the plug is if you never want to use intercom (or plug a headset in at all) this will give you CarPlay on the radio.
You can still use this bypass plug to enable CarPlay if you are using a Freewire for the rider position ONLY and don’t carry a passenger (or don’t care for the passenger talking on the intercom).
BTW, thank you all for the help on this. I really want to have the best of both my worlds here, don't need or care for the bluetooth options, and just trying to make carplay work with a set of earbuds.
So I went out and ohmed my TRRS earbuds with mic. When the mic button is not depressed, it reads in the High K-Ohms. When I press the mic button to talk it goes to 3 ohms. I am guess in in order to use both the earbuds and the carplay, I will have to build an adapter for the DIN, and wrap tape or something around the mic button to keep it depressed in order to get the carplay working. Does this sound logical? And just for S&G's, I jumped the passenger DIN and carplay came up. It worked fine on the bikes speakers, but I then plugged my old headset in and it knocked the sound and carplay out.
BTW, thank you all for the help on this. I really want to have the best of both my worlds here, don't need or care for the bluetooth options, and just trying to make carplay work with a set of earbuds.
EDIT I guess a 3rd option might be to buy the 7 pin plug hack and leave it in the passenger connector and use the headphone adaptor for your earbuds but again, ACP but no mic.
Last edited by hamah; Apr 13, 2022 at 08:45 PM.
EDIT I guess a 3rd option might be to buy the 7 pin plug hack and leave it in the passenger connector and use the headphone adaptor for your earbuds but again, ACP but no mic.
I too have some earbuds I like to use when riding without a helmet (they have the ear loop to keep them on while jogging... when I used to jog
Problem is, all the 5pin DIN to 3.5 Stereo adapters, that I have seen, are audio only, no mic capabilities.
I also have this headset, for when I want a mic when I don't have a helmet on, and it works fine with CarPlay too... got it off Amazon 4-5 years ago, but they aint cheap either...
I think, If you can find somebody that has Diag4Bike near you, and get them to "disable" "CarPlay Mic" would be your best option... unless you have a dealer hooked up to your bike often... because they could inadvertently disable your hack, then you'd have to get it switched back. That hack, I believe, just makes the system stop looking for/requiring a mic, but if you have one it works... best of both worlds. Then you can use whatever wired headset you want... AND then if you go WHIM.... whole 'nother set of things to consider....
What part of Arkansas are you in?
Last edited by Ssitruc; Apr 14, 2022 at 10:24 AM.
I too have some earbuds I like to use when riding without a helmet (they have the ear loop to keep them on while jogging... when I used to jog
Problem is, all the 5pin DIN to 3.5 Stereo adapters, that I have seen, are audio only, no mic capabilities.
I also have this headset, for when I want a mic when I don't have a helmet on, and it works fine with CarPlay too... got it off Amazon 4-5 years ago, but they aint cheap either...
https://www.amazon.com/gp/product/B0...0?ie=UTF8&th=1
I think, If you can find somebody that has Diag4Bike near you, and get them to "disable" "CarPlay Mic" would be your best option... unless you have a dealer hooked up to your bike often... because they could inadvertently disable your hack, then you'd have to get it switched back. That hack, I believe, just makes the system stop looking for/requiring a mic, but if you have one it works... best of both worlds. Then you can use whatever wired headset you want... AND then if you go WHIM.... whole 'nother set of things to consider....
What part of Arkansas are you in?
As for location, Conway area, just north of Little Rock.
Notice rectangular plug instead of rounder ones like yours
The Best of Harley-Davidson for Lifelong Riders

But it is easy enough to redo it... I have had to a couple of times.
Like you sit, you're still going to be tied to the mic requirement of CarPlay. Keeping the passenger plug/jumper in should get you around that... To use the mic, you'll be pushing voice command button (the other end of the left blinker button) so you can tell it what you want it to do, then press your "new" mic button to "activate" your mic to say whatever that is (or talk on the phone)...
I took a 77156-98A, made for full & 3/4 helmets, and put them in a Bell Pit Boss 1/2 helmet with ear pockets... for those helmet states or when I'm wearing one.
Need to clean bugs off that thing...








