The above references to Boom! Box GTS system applies to your Boom! Box 6.5 GT system as well. However, I believe further clarification is needed.
1. I need a WHIM installed on my bike to go with whatever Bluetooth device I buy to avoid any additional "cables/wires"? Yes/No?
A. You need to choose between the H-D WHIM setup or the SENA Freewire setup. I do not recommend a blended approach. Not saying it won’t work, but I think the ongoing support of it would be problematic.
2. I can go with a SENA to match my wife, it will work but sound will only be in MONO vice Stereo, is this correct?
A. If you go WHIM, you will need to use H-D branded headsets to attain stereo quality. If you go Freewire, SENA branded headsets will produce stereo.
3 if YES Is there a S/W or F/W update to address my wife's older device?
A. No S/W or F/W upgrade is going to produce stereo quality in a SENA headset connected to the WHIM.
4. If YES do I need the WHIM or the Freewire device for myself. Meaning I would have to plug the Freewire into the plugin on the gas tank which I don't want. Or can we sync 2 devices to the 1 Freewire?
A. The Freewire will only connect to a single headset, so you will need two Freewire units.
5. If I go with the SENA 30K with the WHIM will the sound still be mono?
A. Yes, mono only if connected to the WHIM.
6. Is there a S/W or F/W update to address my wife's older device?
A. See #3 above.
7. What options do I have to make this work?
A. If you want a clean look and simplicity of use, the all H-D approach is the way to go. it can be installed and maintained by the dealership network, although many dealerships have struggled to master anything Boom! Box related. It’s costly, but the all-in cost is comparable to a SENA approach when starting from scratch, especially if you catch the headsets on sale (happens often online). You can sell your wife’s current headset and Freewire online for roughly 50% of the Suggested Retail Price if it’s not too old. The all-SENA approach will deliver the sound and functionality you want, but will require more familiarity on your part because something inevitably gets unplugged along the way.
I’ve struggled with the cost of converting to wireless and ultimately decided a wired approach isn’t so bad after all. Headsets can be bought/replaced cheap and it works well in the rain. Neither SENA or H-D headsets are rated for use in rain, though I’ve not heard of any problems. Personally, I think H-D is foolish to have such a proprietary approach to wireless connectivity, so I have chosen to spend my $$ on other things.