I went through various iterations of lighting (a lot of hours and £££ wasted) before I was happy. Primarily I wanted to retain the red US rear lights, with no holes made for side indicators and when braking all 5 rear lights activate and when indicating each pair of rear lights flash. The set up below is bright and IMO safe, BUT, whilst it passes muster of an MOT tester with common sense, it would not pass an IVA check. Therefore, if you choose to copy this you do so at your own risk.
What I have now is as follows:
Rear Fog lights/reverse lights:
https://sharplightinnovations.com/shop/ols/products/c6-euro-rear-fog-lightreverse-light
Front indicator/white running light:
White DRL Switchback Harness for C6 corvette
Side and rear indicators: I took a feed (soldered) from the switchback harness, ran wires back through the car to relays, that then power the rear and side indicators.
I still have one of these wired in at the rear, which splits the brake signal from the brakes/taillight, but I'm not sure if it's still required honestly. Rücklicht - Axel Joost Elektronik
Indicator 'bulbs': I have four of these plates, one glued into each US red taillight
LED-Plates Yellow for inside lamp house

Rear bulbs: Not essential, but I use these, really bright and no hyper flash as you're taking the indicator feed from a source that already has resistors.
RED Cree High Power 3157 Bulb (set of 4)

All of the connectors now used are decent quality, quick release types, particularly at the back to allow easy separation of the bodywork. The image below was one of many trial and error experiments.

- I found that the front, switchback amber indicators were a little dim in bright daylight, therefore I have additional, tiny LED's wired inside the darkness of the front grille, you can see them in the first photo.
- The front and rear side running lights would not pass an IVA but actually perform very well as side indicators, once bulbs are changed to short LED's.
- What
isn't needed is a Tech 2 or a Euro rear harness. I bought both and neither were needed, you can leave it set to US region.
There is very little written about how to convert your own car, partly as most new owners pay an import company to do it and therefore those companies understandably don't want to share their hard-earned secrets. I'm not an electronics person, but can just about understand a wiring diagram, so was happy to learn and experiment as I went.
Hope that helps
