Just be sure you get the correct green/red wire - there are others same colour NON-turn related - at the connector the two turn wires, green/white & green/red those will be right next to each other - if looking further down the harness, further away from the connector itself, you'll need to be careful to get the right one.
@RockOn;
@barbagris - don't think the STS installation looks any more daunting than the Kisan -
https://safer-turn.com/wp-content/uploads/2018/09/STS_install_manual_ENv3.pdf
It does involve actually CUTTING the OEM wires (to the switch) vs tapping on the Kisan - both involve modifying the switch to stop it latching so one is as bad as the other in that regard