I would ditch that Synergy jacket before you have a serious problem. My first one got a severe hot spot while riding home from a long trip, combined with intermittent turning off. I thought it was a bad controller or connection. I felt discomfort but the combination of cold and tired caused me to keep riding. 1200 miles later I arrived home and once the jacket was removed I found a burn on my stomach the size of a quarter, with a big blister. I called Tourmaster and all they said was bring the jacket back to where I bought it and it would go out for repair. I brought it back, and fortunately the dealer (Whitehorse Gear) was shocked when they saw the burn, and instead of just sending it out, they handed me a new jacket off the shelf. I was left with a scar the size of a nickel.
A year after I got the replacement that one started having the same problem. Tourmaster said I already had a replacement, and since it was more than a year after my original purchase (of the 1st jacket...just under a year for the replacement) that I was out of luck. I cut open the jacket and below is a photo of what they consider wiring. This simply had tape over it. I cut it out, ordered a dual controller, and rewired it to bypass the original controller, and cut out & repaired every original connection while I was in there. I haven't had a problem since. The second photo is my solder connection...a bit better than what they did.
