uxcell Truck Reverse Backup Parking Assist Sensors for 2001-2011 Ford F250 4F23-15K859-AA

I decided to install backup sensors to my truck here's the box I got off of ebay and what I'm doing is it comes with four sensors and this is what they look like when they're installed comes with a control box comes with the beeper that goes inside the truck and the power supply for and what I'm doing and this is a little nerve-wracking but requires that I drill four holes into the bumper chrome bumper which is in perfect shape so basically there's no turning back now so I've got my first one done that went in pretty easy after I wouldn't got this step fit from Home Depot the one that came with the kit was definitely not cutting it literally so I've got it once tumin install this one on this side next to match and then two more in the middle and then what I'll do is I'll go ahead and gotta tap into the reverse light and when the reverse lights activated it activates the sonar system so