Hopefully not a completely stupid question but if it is I am a new Cayman S owner (2007). Just looking at the front brakes and noticed that is has a different shape wear sensor as compared to the brake pads I purchased (didn't know there were different types available). The ones on the car are the flat style with the rounded end. The brake pads I have take the round pin / cylinder type. Can I just change the sensor to match the pads or do I have to return the pads.