I need help installing a back up sensor kit

I just bought a kit from the company on line. http://osc.reversebackupsensor.com/ They had the best price that I could find. I just need advice on the how to hook it up. Should I do it myslef or pay someone?

it's not a walk in the park but do it yourself, it would save you money and teach you something. just have some tools since you have to remove the bumper and i think drill a hole + pray it comes with an instruction manual