My back up sensors have crapped out so today I ordered a couple from china for about $12 ea. So far the rest of the electronics I have bought from China at super cheap prices have all worked great so i`ll see how these work. I found them on ebay. I looked up the prices from dealer, rock auto etc and they are about $187.00 ea. screw that. So I have a a few weeks to wait for them and we will see how it goes. $24 versus almost $400 i`ll take the chance. Also has free shipping so really can`t beat the price.