In order to attempt to help people with problems they are having with the Boom! Audio Navigation Interface Module Part number 76000024. I hope some of you with problems find this helpful.
Questions I receive about the operation of the Harley Davidson Navigation Module (NIM) Part # 76000024.
First let me say that the H-D Bomm is compatible with the Navigation Interface Module and can be used to take or place cell phone calls using your helmet microphone and the GPS cell phone interface. This and other information can be found at: www.hdbomm.com
I receive at least a dozen phone calls and or emails regarding the operation and or compatibility of the H-D Bomm and the NIM. Most of these questions have to do with the operation of the NIM that is factory or dealer installed. It seams to me that most people including many dealers and Harley techs do not have a clue as to what the NIM does or how it does it so I will attempt to explain it here. If you have a bike with a factory installed NIM then you should find this information interesting. If you purchased a NIM and you installed it then you should not have a problem as long as you installed the Y connector and stereo cable that comes with the NIM kit and you are using the Harley Road Tech GPS with the latest software update 3.70. This update can be found here www.harley-davidson.com/zumo
and click on "Road Tech 660 GPS Navigator", and then the "Downloads" tab to obtain the latest version.
If you purchased a NIM and had the dealer install it then you may find this information interesting if the dealer did not install the Y connector and stereo cable.
If you purchased you NIM kit from a dealer and you are having problems it may be because you purchased one of the early kits. There was an error in the wiring directions included with these early kits which prevents the NIM from working. Two wires were swapped in the early directions. That could be your problem. It has to do with the Tan/Blue wire and the violet/gray wires needing to be swapped. Tan/blue should go to cavity 31 and violet gray should go to cavity 19. Follow the wiring direction found here:http://www.harley-davidson.com/en_US/Media/downloads/Service/isheets/-J05169.pdf
The Harley Boom Navigation Interface Module is an interface that connects to the bikes radio and Harleys Road Tech GPS. You must use the Harley Road Tech GPS with software version 3.70 the Garmin Zumo GPS will not work with the NIM. It functions by interrupting the radio output signal (AM, FM, CD etc.) when a turn prompt from the GPS is present. In other words if you are listening to an FM radio station and you have a turn prompt from the GPS the NIM will turn off the FM and pass the turn prompt to the radio so that you will hear it. After the turn prompt ends the NIM will allow the radio to return to the FM station you were listening to prior to the turn prompt.
There is a reason it is called the Navigation Interface Module. The reason is that it will ONLY interrupt the radios output for a turn (Navigation) prompt. It will NOT interrupt the radios output in order to pass XM, MP3 songs or cell phone calls from the GPS to the radio so that you can hear them.
In order for you to hear XM, MP3 songs or a cell phone call from the GPS you must have the audio output from the GPS routed to the Auxiliary input of the radio. This is accomplished by installing a Y connector and a 3.5mm stereo cable. The Y connector and stereo cable comes with the NIM kit if you were to purchase the kit from a dealer. The factory does not install or include the Y connector or stereo cable. So if you purchased your bike from the dealer with a factory installed NIM then you will have to install or have the dealer install these two components. You must have a helmet microphone interface (H-D Bomm or equal) installed in order to be able to talk on the cell phone.
You can find the information on how to install the Y connector and stereo cable here:http://www.harley-davidson.com/en_US/Media/downloads/Service/isheets/-J05169.pdf
You must have the radio in the Auxiliary input mode of operation (select AUX on the radio) in order to hear MP3 songs, XM or a cell phone call.
I hope I have helped you understand how the NIM works and why you may be having problems with not being able to hear XM, MP3 or a cell phone signals from the GPS.