Radar detection is forbidden. Parking sensors like the ALP not..
So i need radar detection that is in basic a GPS based device which tells where the fixed radar positions are (legal)
If you than can load software for mobile radar controls it is not legal any more. So that functionality needs to be removed by some action of the user. I think the Bel supports it.

So stealth is better than showing it too clearly, as the police officers are not all dumb.

The ALP sensors will need to be a bit visable for good install i think (checks from above)

As for the sti-r antenna, it could go behind plastic, but the distance for the multiradar cd detection seems much better when nothing is in front of the sensor.