We decided to split this installation into two parts, as there was quite a lot of material and it was quite a challenge. The only time we'd delved into wiring this deeply before was when installing a rearview camera.
This first video includes the following parts:
Part 1 (0:53 to 2:44) - Does the Vesta rot?
Part 2 (2:44 to 4:05) - Understanding the diagrams
Part 3 (4:05 to 11:35) - Installing the wiring under the fog lights
Part 4 (11:35 to 13:47) - Disassembling the interior!
We used this kit:
VS-NPPF-AKLV "Do-It-Yourself" fog light connection kit with an active button block for the Lada Vesta