I got used to the parking sensor with my nissan, the car costed only half of BMW. I saved me from accidents many times and scratches against object. My new 2010 328i doesn't have it and I would like to install it. Does anyone know how to install it? I brought the parking sensor that need no screw, just a silver metallic paper attach behind the bumper and wiring to the reverse light wire. Here comes the hardest part, I unplug the wires, but which one, there are four wires attached to the emergency brake light and reverse light. I gave up finally, looking for other solutions. Please I need your help if you have experience.
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