I am fitting Dolphin front parking sensors to my 2021 Scala. To do this properly I need to remove the front bumper to drill the holes. So can anyone tell me a step by step answer please? I can see how to route cables to inside the car but I really need to remove the front scuttle (right phrase?) it is the plastic trim across width of car below windscreen wipers are fitted in this trim. With that removed I can follow the main wiring loom and feed the cables into the interior or from interior to engine bay. The kit comes with a simple on off switch which I may install or simply replace one of the blanks next to Auto Stop with a Skoda switch. Thanks in advance.

Does your car have the auto DSG box? If so, there is a very handy but unused grommet in the bulkhead which is perfect for routing cables.