Front and rear parking sensor OEM retrofit

[Laurentiu]

I found an S4 front bumper (I think it's USP in the USA), which is pretty rare, considering it's an original part, but the bumper has parking sensor holes. I am planning to retrofit as many things as possible on my car, so I was thinking about retrofitting the OEM parking sensors. Did anyone do it? I want to know how complicated the wiring is, especially for the front sensors. Also, my rear bumper doesn't have sensor holes, do I have to buy a bumper that includes the holes or can I find markings for the holes inside the bumper?

[Nidjosaur]

Hi, i will be doing the same thing soon(month or two). And will be joining you on this thread if its ok? I already have an S4 bumper on my car and the sensors in but it is not connected since i dont have a rear bumper yet. Wiring is not a problem if you have the original harness(which i recommend). I still didnt get the module and the rest of the parts.. Missed 8 original Audi sensors with all harness and even a button on ebay for 120£ (britain since i am from europe).
Hope we share our retrofit! :)