GTS radio in 2015 FLHX
-My buddy put a different radio in his 21 FHLXS and i was fortunate enough to get his radio (like brand new) for $250 shipped...he wanted to give it to me for free but after i saw how much they cost, i made him let me give him some $$.
-Lots of conflicting info on the internet about what is or isn't needed.
-I called my local harley dealer, told them what i was doing and asked how much it was for them to flash the radio after install and anything else needed. They said it would be half hour of labor to flash, i would need new wiring harness, and new hand control button to be used as the back button. Let me just say all of this was total horseshit....i did not need any of it.
-So radio shows up at my house, i take the fairing apart, remove old 4.3 boom radio, install new GTS 6.5 radio. Turn ignition to accessory, it turns on, immediately reads the thumb drive i have plugged into the usb in the cubby, and starts playing my music. No need for flash to eliminate this beeping that was supposedly going to occur constantly with bike on or off until it was flashed, no need for new wire harness, everything uses the same exact existing connectors/cabling, and no need to change out the info button currently on my bike for the back button. just use the info button as the back button..it just has an i on it instead of an arrow pointing back like the new button has.
-Everything works as intended, gps, radio, etc. The only info i don't get is some of the engine telemetry because my older streetglide wasn't setup to send that info to the radio. if i want to get my oil pressure and air temp like i could when i used to press the info button on the right controls, i just press the info button on the touch screen of the radio.
That's it, no need for a bunch of extra crap or add on modules or any of it. Even if you are looking at a used 2019 or 2020 GTS radio, as long as it has the latest harley firmware on it BEFORE it gets removed from the original bike, you are good to go. Those two years originally required you to jump through a bunch of hoops but the later firmware updates addressed all that nonsense. I have not tried to use android auto yet from my phone and have read some places that say it must be plugged into the usb for it to work and that it will not work over bluetooth. I did not replace my existing usb cable with the "new" one but i will report back if i find that the original usb cable doesn't carry enough amperage to support passing android auto through to the radio head unit.
For $250 bucks, i couldn't pass up doing the upgrade especially after i saw that these GTS units are over $1000 used on ebay and are $2000 to buy new from Harley. It ended up being a really nice, affordable upgrade, to replace the crappy stock 4.3 boom radio it came with.
Just wanted to share my findings and hopefully can help anyone else looking at doing this to a 14-16 street glide.
LAST THING, you can't take a radio out of a road glide and put it in the street glide. The street glide radios have a small cut out/notch in the bottom of them and the road glide radios are apparently flat across the bottom and do not have this cutout. Without the cutout in the radio housing, it will not fit in the streetglide.
I was concerned too after reading so many older posts, but if you are installing newer GTS with updated software, It's not a big issue.
It feels like a new bike
. I love Apple CarPlay feature, I'm using Bluetooth dongle to get wireless CarPlay. It connects my Pandora and google maps. Totally game changer for me. When HD decided to not have Sirius XM modules available on newer bikes, I was disappointed but after using CarPlay, I cancelled my XM subscription just this month.
Last edited by pyuchem; Feb 26, 2025 at 10:20 AM.
Also, for some a trip to a dealer/Indy may still be needed to set the radio up for the receiving bike, depending on what it came out of -vs- what its going in to (amp -vs- no amp, 2 speakers -vs-4 speakers, etc).
I put a GTS in my '16 RGU in the fall of 2019, it wasn't near as simple back then as it is these day
Make sure before you take off from original bike to update your software to latest Version and factory reset . After that it should move to your bike and then dealer flash. This is what I gathered when I was looking for gts. If it is 2019 and up then it already has updated version so in that case easy swap.
Even a first year GTS can have its software updated in a '14-'18 bike by an individual, but you're gonna need to "borrow" a friend's ECM (from a 2019 or newer bike) long enough to do the software update, or find somebody with a used Soundz GTS module that's collecting dust on a shelf somewhere, that will work too, just to get the software updated (it has to be a used Soundz module too, so that it has already cloned and stored what is needed to fool the head unit until you get the GTS's software update done).
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