I have an original Gerbings jacket liner, Gerbings T5 Gloves, Gerbings Insoles and a Warm and Safe dual wireless controller.
I use these mostly on my Goldwing.
The original Gerbings company sold out a few years ago, warranties went downhill as well as quality from what I've read.
The original Gerbings owner is now making heated gear again
Gordon Gerbing Welcomes You!
To control more than one heated item, you'll need a dual heat controller, otherwise, you'll find one item cooking you and be feeling no heat from the others.
With the Dual wireless controller, I run my jacket off one knob/thermostat and my gloves and insoles off the other.
I have one physical wired connection between the bike and I.
The dual wireless controller is zip tied to my handlebars for easy access.
You need a heat controller, otherwise, you'll be switching it on and off every couple of minutes. The liner can get very hot. I run mine on a 20-30% setting on a 30 degree day.
On a chilly day, you have to remind yourself that it's 30 degrees web you feel all toasty and warm, just like it was a mid 70's day.
I bought my friend and his wife a set of Warm and Safe gear, a couple of years ago and they love them. He runs his off his ST3 and she off her BMW GS650.
This is the power plug from the battery.
Inside my jacket sits the Warm and Safe wireless controller receiver. I made an elastic pocket, inside the jacket pocket to hold it.
The wiring inside my liner.
The Warm and Safe wireless controller. Gold knob controls the jacket liner, Red knob controls the gloves and insoles.
If the wireless receiver fails to communicate with the controller, it defaults to 30% heat.
Hope this helps