Reverse/(front?) sensor for face-lifted E46

[viewfinder]

Any advise on specify type of sensors to go for: Japanese, Taiwan, brands? I see nowadays the 4-sensor one is pretty common, both front and rear. Gotta look good aesthetically & of course work reliably.According to my mechanic, wiring is easy and any accessory shop (in Penang) can handle it. I hope that's true, don't want an eye sore afterwards.This is meant for a post-facelifted E46 by the way.