Buzz coming through aux port with NIM, Bomm, and Roadtech 665 - Road Glide Forums
 
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post #1 of 4 (permalink) Old 03-14-2014, 11:38 PM Thread Starter
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Buzz coming through aux port with NIM, Bomm, and Roadtech 665

Not sure what's wrong. Hoping someone has had this problem. I get a buzz sound coming from my GPS and Aux port. Every time I plug the NIM into the y harness and GPS cabling it buzzes through the speakers.

What could be the problem? Is it the Bomm or NIM?
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post #2 of 4 (permalink) Old 03-15-2014, 08:26 AM
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Remove the Y splitter from the equation by connecting the audio output from the GPS directly into the Aux port. use the same 3.5mm cable that you are now using to do this. If the buzz is still present suspect the GPS, GPS mount/wiring harness or the 3.5mm cable that you are using to make the connection between the GPS and the Aux input. Use a new 3.5mm cable. You can also have some dirt in the Aux port on the radio. Try some contact cleaner from radio shack. Also apply a light coat of Die Electric Grease on the male plug which plugs into the Aux port.

If the buzz is no longer present then connect the Aux using the Y splitter. Only this time just connect through the Y splitter to the Aux input do not connect to the NIM at the same time. If the Buzz is present suspect the Y splitter. If the Buzz is not present then connect the NIM to the other port on the Y splitter. If the Buzz is present when you connect the NIM then again suspect the Y splitter or a bad NIM connection. Use a new Y splitter. Check the NIM connections to the radio and make sure the power and ground wires for the NIM are good.

Make sure the Aux input port is good by plugging another media player into the Aux port. If there is no buzz then the Aux port is good.

It sounds like you have a bad connection which is usually a bad cable or wiring connection. Some times dirt in the Aux port or hand oil on the contacts of the GPS. Use some of that electrical contact cleaner on the GPS and the GPS mount. Try to not touch the contacts on the back of the GPS because you will leave behind a little oil which every one has on there hands and in time this oil will cause connectivity issues.

There is no way that the Bomm can cause a buzz in the radio's Aux input port because there is no electrical connection between the two.

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post #3 of 4 (permalink) Old 03-15-2014, 02:15 PM Thread Starter
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Thanks Jim!! The culprit was a ground wire to my GPS had freed itself. Reconnected it and no more buzz.
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post #4 of 4 (permalink) Old 03-15-2014, 03:15 PM
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Glad you found the problem

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