The last time out I paid extra special attention to listen to the beeps on this system with a car parked behind me. The beeps were definitely coming from the dash area, maybe even up from the dash speaker?? My wife started to get annoyed with me sitting in reverse and not doing anything, so I had to leave it at that. It has been interesting to learn the different ways these things might be setup. I'll try to revisit this topic after a few months maybe with some real world experiences how useful this system really is.

Two climate control systems, one inside and the other at the tailpipe.

2007 Camry Hybrid (in service June 2006)
FE: 6.67L/100km or 35.3 mpg (6.11L/100km or 38.5 mpg in summer)