This might send you in the right direction or give you a resource. Hope it helps get you started. https://www.youtube.com/watch?v=T9i42JSYsMo

No interrupter required with the signal kit i used. Straight forward wiring since the front factory signals are not wired in the U.S. models it's like your adding a complete stand alone kit. I did find however that I need to add a thin piece of metal to the back side of my rear signals I made due to vibration and a few small stress cracks in the plastic. I hope I answered your question and thank you for your interest in my solution.

Sorry new to this just learning to add pics.

Hello all, wanted to add my solution to the mix. I ordered the attached turn signal kit. I then decided on what I wanted the rear signal to look like and used 1/4 inch ABS plastic to make the signals using the kit led lights. The tabs are already welded into position with reflectors mounted to them. I then mounted the switch in the location in the picture, mounting the flasher up in the wheel well on an existing screw. I used the power from the 12 volt accessory power right next to the switch location because it was switched power. I then identified the front led turn signal light wires that are installed but not used in the U.S. Left front I believe is an orange wire from the headlight harness and the right side is a light blue wire. These wires come from the headlight but have no corresponding wire in the connector, so easy to identify. I custom heat formed an inner fender cover for switch and flasher relay protection using 1/8 inch abs. The hardest part was fishing the wires because man they pack a lot behind those body panels. I hope this inspires someone else to jump in and make their own signals, good luck. https://www.amazon.com/dp/B08P52DZZH?psc=1&ref=ppx_yo2_dt_b_product_details