Question about Harley Davidson Road Tech HA90 MP3 Player

3 Answers

Low volume! All works well with the HA90 except that the volume is about half or less, of a CD or FM. I have to "peg" the volume to to the max, to get a clue of the song at 65mph. Help!! (and thanks!)

Posted by on

  • 05SE2 Nov 20, 2007

    I have the same problem, have tried the a/b switch and new speakers it does help but still cannot distinguish the songs at 70 MPH

  • dennisdddd May 02, 2008

    I have the same low volume problem on my roadteck MP3 player on my 2004 dresser. Any cures????



3 Answers

Try using a program like MP3 Gain, it's a free download. Analize and filter your files by changing the track settings. It may need to be done and tested on the bike a few times. But I did it for a friend of mine and it worked great. Read the help and get familiar with the program, it really doesn't take too long and it worked!

Posted on May 20, 2008


Look on the back of the player. You will find an a/b switch on the back of the HA90. It talks about changing the setting if the volume is too low. the switch on mine is behind a rubber boot. Also I just upgraded to the hog tunes speakers in front and that helps too.

Posted on Aug 15, 2007


You have to open up the unit and change the switch inside from A to B, or visa versa. This will solve your problem. Check HDforums for more info.

Posted on Aug 02, 2007

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Are there any upgrades for the Harley Davidson Road Tech HA90?

Not really, The problem with the older radio is that the way they fed the power to the mp3 side was to back door it through the FM modulator, thus resulting in a lower volume than theradio. Unfortunately there is no fix for it.

I’m happy to assist further over the phone at

Feb 21, 2009 | Harley Davidson Road Tech HA90 MP3 Player

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FM plays extremely low volume

Two things to check:

1) Verify that the tape monitor switch is not on. If it is on you hearing crosstalk only.

2) Verify that the unit has a jumper wire from pre-amp out to Amp-in, if your unit has it.

If neither of the above are the problem, please post the make and model and further details will be provided.


Dec 29, 2008 | Audio Players & Recorders

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Bose Wave System CD 2000 FM volume much lower cd stops if volume higher.

sounds like a loose cable from the control bard to , some one will have to open up to fix, i recommend bose do that for you,
as for fm volume, the same could be the cause as the fm antenna coudl be disconnected, ( are you using an external FM antenna ?)

Feb 29, 2008 | Bose Wave Radio

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97 Jeep Grand Cherokee Limited Stereo problem

If you still have audio but unable to turn the volume, there are 02 possible problem:
- the volume control is defected will not respond ( electronic volume control; need logic low/high to activate the audio )
- the front control PCB is broken ( can be fixed if there is a small cracked )
If no audio at all then most likely audio output IC defected

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