If all you want is to HEAR the bike features (CB,Intercom,GPS,Stereo Music), then this bluetooth transmitter along with this Goldwing Cord : Sena Goldwing Cord
will work with your B4 Ncom system.
If you want to HEAR and TRANSMIT the bike features using the B4 headset, I am afraid there is not a wireless option for you. You can plug into your Goldwing using this cord: Ncom Goldwing Cord
You wold still be able to wirelessly pair to other devices like you phone, gps or music source.
There is a totally wireless option, but your current B4 would need to be replaced by a Sena Headset (SMH5-FM,SMH-10,or 20s). You would also need the following items connected to the Goldwing to get all the features you want: HEAR and TRANSMIT CB, Intercom,GPS,Stereo Music
1. Dual Harness
2. Extra SMH-10 Unit
3. Sens Bluetooth Transmitter
(only needed if you want music in Stereo, other wise you will have mono music)
Hope this Helps. Please give us a call if you need more explanation.
Bill Harbison, Owner
The Helmet Shop
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Answer provided by: Bill Harbison (11/29/2014)