As anyone with the SRL-03 in either a Neotec 3 or GT Air 3 will know there is no 3.5mm jack socket to plug your earbuds or custom made earphones into. For some earlier versions of the SRL, you could take the speakers apart and connect a 3.5 socket with a home made adapter cable, but you can't really do that in the SRL-03 as the wires are soldered directly to the speakers without a convenient plug. Sena sell some earbud splitter cables for other headsets, but not for the SRL-03. This is really disappointing as the speakers are even quieter than they are in the SRL-Mesh, and you can't hear them if above about 40mph you're wearing earplugs. Sena use their own proprietory connectors and it's further complicated by the microphone being connected to the right hand speaker so there's a 4 pin connector for one speaker and a 2 pin for the other.
I've finally found a solution though...
You need 2 x Sena 10R-A0101 earbud splitter cables, which are about £18 each. Each splitter cable has two 2-pin plugs and a stereo 3.5mm jack socket. You can get two of the 2-pin plugs (one from each cable) to fit into the 4-pin socket for the right speaker. The other 2-pin plug from one cable goes to the 2 pin socket for the left speaker and the other 2-pin plug on the other cable goes directly to the 2-pin socket on the microphone, bypassing the right hand speaker. Then either put a 3.5 stereo plug with the left and right channels shorted together into the 3.5 jack socket on the 'mic' cable, or cut the jack socket off and twist the two wires together.
With this method you don't need to take the SRL-03 apart or cut any of the wires, so you can easily change back to using the SRL speakers if you want to.
