installing headphone jack

bobt1956

I got the service dept to let me look at the wiring diagrams and take notes.
Then built a little 4" (7-Pin DIN Male to 1/8" mini-stereo adapter) which allows me to plug in any type of earclips, earbuds, headseats.

glider

I don't think you will be.

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HarleyHarry

The '07 Ultra's must have a different sound system. I can hear my radio/cd player at whatever speed I go. With fullface or open helmet. Bass and treble is good and volume is ample. Have they upgraded the sytem as I have seen a thread about this very thing before?

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glider

The newer models have the Harmon Kardon systems now. They are supposed to be an improvement over the older systems, they even have downloadable updates available on the HD site for them too.

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Bluesssman

My 07 Road Glide has a Harmon Kardon system and with the stock speakers it did work very well. However, with the Hog Tunes speakers it was just so much better! I do not have to have the volume as high to enjoy the music at 65 mph or any other speed for that matter. I think any system can be improved upon!

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ProF

I'm thinking that when my Hogtunes get here I'm going to wire in a headphone jack anyway, as I'll already have everything opened up. If I don't use it, I'm only out a few minutes' work.

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iowatree

Ok,Ok, you guys talked me into it. I going to order some hogtunes speakers and give them a try. I'm like you Prof I think I will add a small jack will I'm in there. Thanks for the help. iowatree

dangerdan

Just a suggestion for you guys that have the Harmon Kardon system and are planning on using headsets / earphones.
TURN THE VOLUME AS LOW AS POSSIBLE AS A PRECAUTION BEFORE PLUGGING IN YOUR HEADSET/ EARPHONE

Harmon Kardon systems are rated at 40 watts ... Thats a lot of power. I tried to get some info on their site as to how much power went to each speaker. Just got total power of 40 watts.

Lets assume for this discussion its 20 watts to the left and 20 to the right speaker.

I used this site "mediatech.com" as a reference for headset and earphone stats. Headsets / earphones are designed to work thru a seperate amp which reduces power and matches heaset ohms to amp ohms.

Max input power to a headset is 100 milliwatts or 1/10 of one watt.
Max input power to a earphone is 10 milliwatts or 1/100 of one watt.

Depending on how this is done you could end up running full power through your headphone / earphone. Now, I have never tried this , but if you do the math you could possibly blow your headset and THAT VERY EXPENSIVE RADIO.

glider

Hey.......what did ya say Dan? Can't hear ya

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ProF

Is that true? I never ran into that issue when hooking up headphones to home stereo, and when I looked at the diagrams for the Harley radio (I have the older, 2003 radio), there didn't appear to be a separate amp to supply the helmet earphones on the RKs.

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