Software to make GTS compatible is here
Gents: if you buy a GTS unit from another member or on eBay or Facebook Marketplace, try to have the seller do the steps BEFORE they ship to you: run the firmware upgrade, then do the pre-calibration reset. If the unit you get DID NOT have those steps done, line up with a buddy who has a '19 or '20 model and convince him to let you pull his outer fairing to connect your new head unit. If you don't, you're at the mercy of the dealer, and they will likely NOT have a clue as to what you need done, and with the COVID nonsense preventing shops from allowing you to talk directly to a tech, you might get a bill for services only HALF rendered (ie, they just update the firmware). In my case, my only buddy who DOES have a '19 Road Glide won't let me take off his fairing, and the one dealer who claimed they could help sent me on my way with a radio that doesn't connect...I suspect that despite giving them the steps, the tech didn't know or didn't care to do a pre-calibration reset: if they even actually plugged into a '19 or '20 model year bike to let the firmware (which was preloaded on a flash drive and connected via my usb cable) run. I was billed one hour of labor (plus for some reason $5.95 in Shop Supplies) only to get the GTS home and and installed to my '17 Road Glide Ultra to be met with the "This radio is not compatible with this vehicle. See your dealer for assistance" (that's not the verbatim message: but I will post a pic so you know what you'll see if these steps aren't taken). Now I have to bring the bike back to them (they got me for an hour's labor: this time, they'll earn it!) and have them correctly update the radio so it functions. And I'll be handing the tech the firmware changelog that describes the changes that the MY20.19.39.00 software is supposed to effect: namely, allowing for retrofitting the GTS to '18 and down Rushmores.
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Joined: Oct 2007
Posts: 62
Likes: 4
From: Paola,Ks
old thread but i am going through this now . been to 2 dealers and they told me my gts radio wont work in my 2015....they even told me that harley told them it woulnt work. somebody needs to enlighten corporate about this
Stellar HDF Member
Joined: Jun 2017
Posts: 2,325
Likes: 1,155
From: Oklahoma
ask them how you get their TPMS to work on your 2015 bike, and watch their heads explode... (just replace the BCM $200)
Surprised they don't know this stuff, missing out on sales...
I put the GTS in my 16 RGU in October of 2019 (using a Soundz module), back then it was funny trying to get it "authorized"/programmed, specially when I asked them to take a ECM out of a 2019 bike off their showroom floor just for the initial programming
but I convinced them to do it and in about 30 minutes all was good.
Surprised they don't know this stuff, missing out on sales...
I put the GTS in my 16 RGU in October of 2019 (using a Soundz module), back then it was funny trying to get it "authorized"/programmed, specially when I asked them to take a ECM out of a 2019 bike off their showroom floor just for the initial programming
but I convinced them to do it and in about 30 minutes all was good.
Last edited by Ssitruc; Jan 13, 2023 at 12:33 PM.
Stellar HDF Member
Joined: Apr 2007
Posts: 2,339
Likes: 486
From: Nor Cal
they are still clueless on this? crazy, I have an old soundz module, all you gotta do is plug that in, do the update and reset then remove the module and it works just fine.
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Joined: Oct 2007
Posts: 62
Likes: 4
From: Paola,Ks
I have a 2019 in Kansas but the 2015 is in Arizona . I dont know anyone in Arizona with a 2019 to plug in and update. So I may have to take the ecm out of my 2019 and bring it to Arizona next year. I have the radio installed in my 2015 and get the dreaded "radio not compatible with this vehicle"
Stellar HDF Member
Joined: Jun 2017
Posts: 2,325
Likes: 1,155
From: Oklahoma
What is the part number of the radio you're installing, does it have a revision letter after the part number?
Radio's sold with a revision number at the end of the part number came from the factory with the software that made them backwards compatible for 2014 and up bikes.
If you bought the radio radio used, what is the part number on it? If it was out of a 2019 bike then the radio's software needed to have been updated to this version before it was removed to have made it backwards compatible (from HD's "revision notes"):
Update: MY20.19.39.00
Improvements
P&A radio P/N’s 76000829A and 76000834A are already loaded with this software, which allows the GTS radio to be compatible with ’14-’18 Touring
and Trike North American (DOM) models. If the GTS radio is not one of these two part numbers and is being installed on a ’14-‘18 Touring or Trike this
software update MUST be performed with the radio connected to a ’19 or later Touring bike prior to installation on the earlier model. Once the update
is complete a pre-calibration reset MUST be performed on the radio, then it can be installed on a ’14-’18 vehicle. Refer to instruction sheet 94100195
for fitment details.
For reference, I believe the part numbers mentioned in the Update Notes are for the "kits" as sold in the P&A Catalog (radio and back button switch cover) and the sticker on the radio itself will have a different number for the radio. For instance I bought a new #76000834 in September on 2019 and the sticker on the radio itself says P76000779.
IF memory serves me right, this would be radios that came in the 2019 model bikes, and possibly some of the early 2020 model bikes. By Christmas of 2019 they had started selling the radios backwards compatible, and released the software update, referenced above, for radios already sold/in use I believe in early January 2020.
As far as the ECM "trick"... I know that will work in older bikes (2014 and up) on the original radios (without a revision letter) if you have the Soundz module installed, I don't know for sure if it will work by just putting the '19's ECM in the bike just to do a software update... seems like it would though. What I have heard of people doing was sitting the "used" GTS in a 2019 and doing the update & reset mentioned above, then moving the radio to the older bike. Sounds like a good excuse for a road trip to Arizona from Kansas, or vice-versa. I do have a Soundz module laying around here somewhere.
Radio's sold with a revision number at the end of the part number came from the factory with the software that made them backwards compatible for 2014 and up bikes.
If you bought the radio radio used, what is the part number on it? If it was out of a 2019 bike then the radio's software needed to have been updated to this version before it was removed to have made it backwards compatible (from HD's "revision notes"):
Update: MY20.19.39.00
Improvements
P&A radio P/N’s 76000829A and 76000834A are already loaded with this software, which allows the GTS radio to be compatible with ’14-’18 Touring
and Trike North American (DOM) models. If the GTS radio is not one of these two part numbers and is being installed on a ’14-‘18 Touring or Trike this
software update MUST be performed with the radio connected to a ’19 or later Touring bike prior to installation on the earlier model. Once the update
is complete a pre-calibration reset MUST be performed on the radio, then it can be installed on a ’14-’18 vehicle. Refer to instruction sheet 94100195
for fitment details.
For reference, I believe the part numbers mentioned in the Update Notes are for the "kits" as sold in the P&A Catalog (radio and back button switch cover) and the sticker on the radio itself will have a different number for the radio. For instance I bought a new #76000834 in September on 2019 and the sticker on the radio itself says P76000779.
IF memory serves me right, this would be radios that came in the 2019 model bikes, and possibly some of the early 2020 model bikes. By Christmas of 2019 they had started selling the radios backwards compatible, and released the software update, referenced above, for radios already sold/in use I believe in early January 2020.
As far as the ECM "trick"... I know that will work in older bikes (2014 and up) on the original radios (without a revision letter) if you have the Soundz module installed, I don't know for sure if it will work by just putting the '19's ECM in the bike just to do a software update... seems like it would though. What I have heard of people doing was sitting the "used" GTS in a 2019 and doing the update & reset mentioned above, then moving the radio to the older bike. Sounds like a good excuse for a road trip to Arizona from Kansas, or vice-versa. I do have a Soundz module laying around here somewhere.
Last edited by Ssitruc; Jan 20, 2023 at 08:47 AM.
Advanced
Joined: Oct 2007
Posts: 62
Likes: 4
From: Paola,Ks
no revision on part number...Its in the bike so I wont be able to get it..I do remember it ended in 79 i believe. I winter in Arizona and summer in Kansas hence the 2 bikes...
..... watch this guy!.........but if i knew anyone close that had a soundz module i could borrow that would work also...just need to get the radio to come on so i can update the software
Stellar HDF Member
Joined: Jun 2017
Posts: 2,325
Likes: 1,155
From: Oklahoma
Good to know, make sense too, because that Soundz module was for BEFORE the software came out and it just "fooled" the bike AFTER you temporarily put the 2019 ECM in the bike into the stereo think it was still in a 2019 bike even after you switched the ECMs back. Now once you do the software update, problem solved.
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