Rear Speakers Output from Stock HD Radio
Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
Most "good" dealers will turn on the rears and balance on an HK radio for free or cheap. At least the dealer I use does if you bought your bike there. If you just walk in off the street they charge $25. That's mostly for the hassle of opening up your fairing. The actual upload takes about a minute to do.
Last edited by shooter5074; Jan 27, 2012 at 09:45 AM.
Thread Starter
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Road Master
Joined: Apr 2008
Posts: 935
Likes: 1
From: Indiana
Here's what I understood:
1. Rear speakers output should be hot, dealer's flash is needed only for fader to show up on radio, and it's done behind the side cover, not behind the fairing.
2. IronCross mod only add pre-amp level, it does not cut out OEM speaker level. Matter of fact, OEM front speaker output still works, that's what I'm using to get signal to CVO amp underneath tourpak.
3. Someone mentioned on a SG (only?), rear speakers output has to be "turn on" by dealer, you might be onto something, I'll check with dealer.
Thanks all for your feedback so far.
1. Rear speakers output should be hot, dealer's flash is needed only for fader to show up on radio, and it's done behind the side cover, not behind the fairing.
2. IronCross mod only add pre-amp level, it does not cut out OEM speaker level. Matter of fact, OEM front speaker output still works, that's what I'm using to get signal to CVO amp underneath tourpak.
3. Someone mentioned on a SG (only?), rear speakers output has to be "turn on" by dealer, you might be onto something, I'll check with dealer.
Thanks all for your feedback so far.
Outstanding HDF Member
Joined: Jan 2011
Posts: 2,590
Likes: 31
From: Western Illinois, land of bad roads, and corrupt politicians
I just called my dealer.... he said the flash turns on the fader....... and that the fader is set to full front by default. So even though the rear speakers are "hot" they are turned all the way down.
And you're right about the side cover being the access point for the flash.
And you're right about the side cover being the access point for the flash.
Thread Starter
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Road Master
Joined: Apr 2008
Posts: 935
Likes: 1
From: Indiana
Guess I should have added this too. I have a J&M amp powering the front speakers. Can I just hook up rears to the output of the UOL harness or do I need a 4 channell amp? Also, in order to get the fader to show up on the HK, do I need to go to the stealer or will it automatically show up once speakers are installed to the rear output? Kinda like how XM showed up on the screen as an option once I had it installed. Hope I don't need another amp, they ain't cheap, not for just a little rear fill.
If you want to fader to work, you'll want to look into a 4 ch amp, with inputs from front and rear, and dealer flash. The fader won't work without this step. If you do not need the fader, you can just wire up the 2 rear speakers to the same amp, in series if the speakers (all four) are 2 ohm, or parallel if the speakers are 4 ohm.
Thread Starter
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Road Master
Joined: Apr 2008
Posts: 935
Likes: 1
From: Indiana
I'm not sure if a 3-way switch has to be mounted on a Street Glide when installing rear speakers. I know the 3-way switch will turn the rear speakers on and off on my Ultra Classic. In order for the fader to work and switch from front to rear speakers don't you need the 3-way switch?
Thread Starter
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Road Master
Joined: Apr 2008
Posts: 935
Likes: 1
From: Indiana
Damn! Has to wait till Spring, then. Bike's apart and is too damn cold outside....
Road Master
Joined: Jan 2010
Posts: 922
Likes: 2
From: Hampstead, MD
Thanks for all the info guys. Looks like I'll be selling my J&M amp and getting a 4 channel one.
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From: Roswell, GA
Guess I should have added this too. I have a J&M amp powering the front speakers. Can I just hook up rears to the output of the UOL harness or do I need a 4 channell amp? You don't need a 4-channel amp; the HK rear speaker outputs don't care that the fronts are going to an amp. Also, in order to get the fader to show up on the HK, do I need to go to the stealer or will it automatically show up once speakers are installed to the rear output? A dealer download is required; or, send the HK to Iron Cross Audio--they can do it. Kinda like how XM showed up on the screen as an option once I had it installed. Hope I don't need another amp, they ain't cheap, not for just a little rear fill.
I also wonder if the IronCross mod disables output to the wiring harness for all channels. I have that mod on my radio as well but I have low level outs for front and rear (rear goes to lower fairing speakers). The addition of the pre-amp outputs doesn't disable the speaker level outputs.
Carl
Former Sponsor
Joined: Apr 2009
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The rear speaker outputs from the radio will not be active if the HK amp is in the circuit. The CAN Data Bus will shut down the rear output.
Without the HK amp in the circuit, the rear speaker outputs are always active. If the fader is not flashe on, the front, rear outputs default to a 50 / 50 split (it does not default to full forward)
The dealer flash will only activate the fader
With the HK amp in the system, the fader will default to the amp.
Hope this helps
Without the HK amp in the circuit, the rear speaker outputs are always active. If the fader is not flashe on, the front, rear outputs default to a 50 / 50 split (it does not default to full forward)
The dealer flash will only activate the fader
With the HK amp in the system, the fader will default to the amp.
Hope this helps