Not Specific to K12lt but good to know. - BMW Luxury Touring Community
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post #1 of 2 Old Jan 24th, 2020, 1:53 pm Thread Starter
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Join Date: Sep 2019
Posts: 53
Not Specific to K12lt but good to know.

FYI: Adding Bluetooth(B.T.) capabilities to a non B.T. GPS.

I own a Garmin Zumo 450 GPS unit and 2 Sena smh10 B.T. helmets communication devices. The Zumo is not a B.T. unit, however it has a 3.5mm output jack for headphones (this is very important)
The bike (K1200lt) has a radio/CD changer, but no MP3 capabilities. The Zumo 450 has a built in MP3.

How to get the GPS voice communication and MP3 player to the B.T. headset?

For as little as (CAD)$50 or (USD)$40 you can accomplish it. This is a lot cheaper than replacing a Zumo GPS (at least $800).

I bought a TaoTronics Bluetooth 5.0 Transmitter and Receiver and I am using it in transmitter mode. The TaoTronics Bluetooth can be connected via a 3.5mm jack, RCA or optical (Toslink). The unit is very small (2.4 x 2.4 x 0.8 inches) and comes with all cables but no charger. A cell phone charger is all what is needed.
The unit can have 2 simultaneous BT device connections (in transmitter mode) and it was easy to connect the 2 Sena. This is great as rider and passenger can listen to the music, use the phone or communicate with others. The pairing was a no brainer.

I would recommend this unit to connect non B.T. devices to a B.T headset. This is Bluetooth version 5.0 and its downward compatible with older B.T. versions.

I also tried it on a TV, and it works well. I used the optical connection from the TV for one reason: I can mute the TV and still receive the sound on the optical port (Pass through). The only drawback is that the volume has to be set using the B.T. speaker controls and not the TV remote control.

There are cheaper versions with no optical input/output. I believe they would work, but its up to you to read about it.
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post #2 of 2 Old Jan 30th, 2020, 4:35 pm
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Join Date: Jan 2020
Posts: 5
Re: Not Specific to K12lt but good to know.

My garmin has bluetooth built in so you can stream your music to it. The problem with doing it that way is your volume control. You have to do it all on the GPS unit instead of the radio because the GPS audio has a pre-set level that is designed to be always audible while riding.

So I just got a bluetooth adapter with a 3.5mm plug and hook it up in the glovebox to AUX. Haven't had a problem with that yet, and you can do phone audio this way too if you want to hook it up to the 2.5mm communications connector as well.

Really most people just get the bluetooth adapter for their helmet and then connect the phone directly to it. It's much easier to do audio and microphone this way, but I prefer the wired connection as I don't usually ride with my phone. Rather use a cheap $30 mp3 player.
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