[mickey.1430]

anybody install these instead of the Parktronic option? What brand and operating experience?

 

[Michilein]

yup!
I got mine at obstaclesensor dot com. Did the insall myslf. It's rather easy to do. Consumer reports also did a test on back up sensors about 3 months back you might want to look into. It's not as fancy as the OEM product but does a good job.