backup sensor

I just ordered this system. It is microwave based and can be mounted behind the bumper for a discrete appearance. Anyone have any experience with the install on a ridgeline? If anyone else is interested, I found a clearance deal at charafa.com for $140 with free shipping. I hope its not on...

I recently picked up my RL from the dealer. I had wanted a backup sensor, especially when my wife drives it as she's in a Civic right now (and the RL feels like its twice as long!) Instead of the OEM one, they sold me a much cheaper one (didn't tell me the brand of sensor, but there are four...