Parking Assist
I have been interested too, but don't want to take the bumper off and drill it. I found this review on Amazon:
After checking Reviews of the many different products available on the net I settled for
this Audiovox PSB100 backup sensor kit from Amazon. Product delivery was on time. Everything
you need for installation of backup sensor is in the kit. Great product and installation
instructions. I have installed this on my 2009 Ford Escape and it works as promised. It took me two hours to install and test. I will recommend this kit to anyone looking for backup sensor kit. Dealer wanted $450+tax to install backup sensor. This kit is very easy to install and works the way I wanted for just $55.