Great system and doesn’t damage your vehicle or require you to destroy your dash or center console! Very happy. Been using for nearly four years. If you drag snow or water into your vehicle from your shoes, be sure to replace the cables once a year. They can rust out. Ask the seller about this. They are very helpful. Took me half an hour to install. I place the protective pin in the unit when my family goes on vacation. I’m a rural route driver and can’t recommend anything better. The driver in the neighboring case picked up two of them (he didn’t want to tear stuff out of his primary and backup vehicles). Great for HCR drivers!