Fader not function properly......
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
Fader not function properly......
19 SG...ARC moto720 4 channel amp, Arc CX6 fairing speakers and Mmats 690's in the lids.
Techno Research RF flash.
GTX radio connected to amp via channel 1 and 2 input.
The problem...
Fader centered all speakers play fine at all volumes. Fade to front and nothing changes.
As I fade to rear and all 4 speakers go lower in volume together once it is left of center and all shut off in full rear fade.
The fader acts actually acts like a volume control from Full rear Fade to Center and does nothing from Center to front.
Any ideas?
Techno Research RF flash.
GTX radio connected to amp via channel 1 and 2 input.
The problem...
Fader centered all speakers play fine at all volumes. Fade to front and nothing changes.
As I fade to rear and all 4 speakers go lower in volume together once it is left of center and all shut off in full rear fade.
The fader acts actually acts like a volume control from Full rear Fade to Center and does nothing from Center to front.
Any ideas?
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
So you only have 2 channels connected at the input (ch 1 and 2)? You won't get fade unless you have 4 channels connected from the HU to the amp. You'd also need to be flashed for 4 speakers and have the amp input select set to 4CH. I'm not sure if the RF flash has a 4 speaker flash or not (I think their's might be 2 speakers) but you could test with the Harley 0 amp/4 speaker flash if not.
I know a lot of people don't worry about having rear fade and are fine with 2 channel input and 4 speakers output from the amp. Personally, I like to have fade.
I know a lot of people don't worry about having rear fade and are fine with 2 channel input and 4 speakers output from the amp. Personally, I like to have fade.
Last edited by hamah; Sep 5, 2021 at 07:27 PM.
Thread Starter
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
Sounds like it was flashed for 2 speakers so there would be no fade. Is there a 4 speaker flash you could use? Not sure if RF has one but you could try the Harley 0 amps and 4 speaker flash to confirm everything else. Lots of people don't bother with fade but I like it myself.
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
I don't think there was a choice for two or four speakers with the RF flash. As I understand it is that flash should have fade control. It's not the end of the world for me but just wanted to confirm with others that have the RF flash. Maybe its the connection from the GTS to the amp using only the 2 channel inputs.
. You'd need 4 channels from the HU to the amp to get fade control. It does sound like you have fade enabled as I don't think you'd be able to adjust the setting otherwise.
Last edited by hamah; Sep 5, 2021 at 07:43 PM.
Thread Starter
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Seasoned HDF Member
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From: Danbury CT
Looking in Ronnie's Parts finder bikes with front speakers don't seem to have rear speaker connections in the harness.
Last edited by golfblues; Sep 5, 2021 at 09:06 PM.
Road Warrior
Joined: Feb 2016
Posts: 1,354
Likes: 399
From: Vancouver, BC
If the wiring in your '19 FLHX is the same as the '15, and I think it is, there is a 6 pin (gray?) Molex MX150 connector for rear speakers. Unless the bike came with speakers in the saddlebags it should be not used and capped and sits above the radio. The connector is labeled 162 Rear Audio in the manual (not sure if it's labeled in the wiring harness).
The pinout is:
Rear Left + pin 1
Rear Left - pin 2
Rear Right + pin 3
Rear Right - pin 4
Not sure how you have your front speaker outputs connected to your amp but that should give you enough info to repeat for the rears.
Good luck!
The pinout is:
Rear Left + pin 1
Rear Left - pin 2
Rear Right + pin 3
Rear Right - pin 4
Not sure how you have your front speaker outputs connected to your amp but that should give you enough info to repeat for the rears.
Good luck!
Last edited by hamah; Sep 6, 2021 at 02:11 PM.
Thread Starter
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Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
If the wiring in your '19 FLHX is the same as the '15, and I think it is, there is a 6 pin (gray?) Molex MX150 connector for rear speakers. It should be not used and capped and sits above the radio. The connector is labeled 162 Rear Audio in the manual (not sure if it's labeled in the wiring harness).
The pinout is:
Rear Left + pin 1
Rear Left - pin 2
Rear Right + pin 3
Rear Right - pin 4
Not sure how you have your front speaker outputs connected to your amp but that should give you enough info to repeat for the rears.
Good luck!
The pinout is:
Rear Left + pin 1
Rear Left - pin 2
Rear Right + pin 3
Rear Right - pin 4
Not sure how you have your front speaker outputs connected to your amp but that should give you enough info to repeat for the rears.
Good luck!
thanks for the heads up
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Thread Starter
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Seasoned HDF Member
Joined: Sep 2007
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From: Danbury CT
Thanks to all for the help. I was able to get the connector for the bike rear speakers from vtwin audio and the amp input connector from arc and spice them together and now everything works as planned with total fade control.. it makes it easier to dial in the front and rear speakers separately. It sounds great.....thanks again.... And yes I did reset my gains and crossovers and switched to 4 channel input.
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