As a ham I'm always interested in "RF" stuff and made some interesting Insight tint related tests. I recently bought a Kustom HR-12 radar gun off ebay and thought I'd try it out in the insight. I found that using the radar gun in the forward moving mode seemed only lock on to a target at about 400-500 feet which seemed pretty subpar. So I parked the car and tried a shot out the closed passenger window with similar results. Now I lowered the window and what would you know, range increased to about 2000 feet. The front and side window tint was killing the outgoing and reflected radar signal.
Now what has this to do with normal drivers who don't run radar you ask ? This same tint will have a similar effect on your radar detector. I use a radar detector when going to work and noticed it didn't seem as sensitive as it was in my 04 Smart which had very little tint. I would guess the Honda Insight window tint is probably aluminum based and is a bad thing for the detector and possibly hand held radios with interior antennas. So for those who use a radar detector I think the only option would be to go to something like the remote mount BEL STI-R or Escort 9500-ci . Very pricey but short of replacing all the window glass with clear it is the only way to get things working properly.