I remember there being something different about the IBU 2. The wiring harness for the LED lights and the IR sensor are separated.. I think you would have to split the cables and run two wires two different ports. Because the IBU2 has the ring of lights to add to the Heng Long TBU they did it a little different then the BARC, Clark or Tamiya.. Page 11 on your IBU2 manual explains it.( Although this manual is from the Old IBU2, and I am not sure what updates they have done to it, so page numbers might not be the same.


Cheers

Dan

Cheers