I think at he very least youll need to swap the gauge cluster, steering wheel with paddles, and the shifter.

 

I'm wondering about the ECU and any connections

 

Not sure about that, like i said before, you gotta compare the wiring diagrams between the two.

 

I'm gonna try to find one for the Jazz to compare as I have the L13 ivtec with CVT, I see a Jazz offered with the same specs but with paddles, they market it as a 1.4 tho it's really 1330 or so

 

Good luck. I hope you find it! Id be interested in it too but not worth the cost of the parts

 

Sorry for reviving an old thread but I wanted to post my conclusions.

The wires don't exist for the paddle shifters between the ECU and the steering wheel on my base model 2013 fit.

However this didn't deter me. According the wiring diagram the paddle shifters just send a ground to the ECU. I hooked up some leads to the pins on the ECU and took it for a drive. I tried having the transmission select in D D3 2 and 1 and none of the positions reacted to grounding of the ECU pins. So my conclusion is that the software is different and you can't just wire up some salvaged paddle shifters.