The plasma rods are made with two wires, ground and power lead. You ordered yours with the dual converters which is a fancy way of saying a splice kit to make one wire into two. I think what the TSD does is seperate the blinker from the brake wire if you want blinker only.

When I installed the Rods, I used three Posi-Taps. One for both grounds, one on the left Brake/Turn wire and the third on the Right Brake/Turn. All of which are on the fender harness side of the connector under the seat. I'll get a couple pics as soon as I can.

Here are some very short videos of the signals in action:

My mirrors were installed by the dealer too but they are wired external like all the rest of the wiring on the stick SG.

 

This is the "Dual Converter" that makes 2 wires into 3:

 

Iron Aces Speed Shop has good prices also !!!

 

Ok, looking at the instructions that come with the Plasma Rods, it doesn't look like you need the TSD for your installation either.

 

@Rustrtal,
I have looked your instruction pic, and all I can say is, we don't have the same part.
Mine is Dual Plasma Rod, that can be used for running/break/turn at the same time. Yours has 3 wires and can be used only for two functions at time, as shown on the diagram. Mine has 4 wires (pic 1).

I have to see what are the sic wires that go through that harness. I cannot find that even on the 2015 Service manual. I have found the wiring diagram but could not get which color goes where (pic 2).

Just as to continue the discussion, not to argument with you.







2015 Touring Service Manual

 

I have a Canadian 2014 Street Glide,and I believe the wiring from under the seat to the Tri-bar light is the same as the US version.The color code of wires in fig 2 in my case was:
Red/Yel 12V
Blu/Brn RT Sig
Blu 12V
Blu/Rd Brake
Blu/Violet Lft Sig
Blk gnd

 

With the 2014+ bikes, the turn and brake are the same wire in the stock harness. There is one for the left and 1 for the right.

The rods I recieved only have 2 wires and can be used as Run/Brake/Turn with the use of a Dual Converter which after re-reading the CD site, also changes the rods to Dual Intensity. I'm not sure why yours have 4 wires but I'm still pretty sure you don't need the TSD if you use the Dual converters to create a 3 wire Rod.

 

I think now I see what is going on. The Plasma Rods on my bike are Red Only, yours are Yellow and Red therefore the need to isolate the turn signals to one wire.

 

I apologize for my misleading statement, you were right, there is single wire for the brake/turn signal light, not single turn wire for both sides. That is what the GEN_TSD does, it splice out the turn wire from the turn/brake wire, and allows you to add the turn wire from the rod on the spliced POSI lock. The other wires accept their own POSI locks.

Here is a "terrible" video from my bike's rear end with the rods and LEDs installed. I still have snow and ice outside, so I had to do this on very low light, which my GoPro did not like. I will change the video with better one, when I make one, :-)