Aftermarket add-on questions - new to me M3

[FRFNUGN]

Just had an F80 delivered to me which I bought from out of state, sight unseen. All is good except for a couple seemingly aftermarket add-ones which I can't figure out. Does anyone know what the button & LED next to the headlight switch is for? Also, there are two unknown devices next to the rear license plate lights which I'm unsure of. Any ideas?

[Beemerm3]

one of the lights is alarm probably. the rear is a camera add on.

[FRFNUGN]

Originally Posted by M3classic

one of the lights is alarm probably. the rear is a camera add on.

There are two identical boxes on the rear, and they don't appear to contain any lenses. There's already a stock backup camera. Radar/laser detector system maybe? I'll have to look closer in the front grills and air dams to see if there's any sort of pick-ups there as well. I've never had any radar system, but I'd assume the sensors would be front and rear, right?

[LarryM4C]

You have a laser jammer installed. Make sure you want to take the risk as they illegal in some states (as per the stealthy set up). Total cost may have been maybe $2000 including installation.

https://www.radarbusters.com/Laser-Jammers-s/2311.htm

[Tommy L Garage]

Laser jammers. Score!! They look to be installed right too

[cwazy1]

yup, laser jammer. Awesome score!

the controls seem to be put into the unused buttons in the light control. Top one is probably notification light and bottom is cut off.

Do some research on how laser jammers work and how to operate them.

[DocL]

Now look for two larger ones in the front of your car. If they are there you have front and rear laser jammers which is fucking awesome.

[Poiseuille]

^^^ this
take some general pics of your car that look like just random views but that happen to include these items if you mag the pics. then, should a situation arise==>

"gee Officer, is that what those are? musta been there from the previous owner...wait, i may have some pics from when i bought it..."

[deeldoo]

Looks like the russians are spying on you

[FRFNUGN]

Thanks for the help, all! There are 3 other boxes in the grilles in front as well. I've never researched jammers for any reason, but it's pretty sweet to have...I think...? When it started notifying me of K-band and V-band or whatever else last night on my first drive with my wife, it was exceptionally loud and annoying. I'll for sure need to figure out how mute it but keep them active, as I don't drive excessively fast typically.

Laser jammers appear to be legal in WI, so all good there.