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Radar detector in your Model S?

Is anyone thinking of using or installing a radar detector in your Model S? I wouldn't call myself a habitually fast driver, but after my test drive, I can see myself getting caught up in the driving experience more than I currently do in my Prius. (Or I may just become a habitually fast driver.) That said, I'd like to know in advance before I drive past a speed trap. Personally, I don't like clutter in my car, and the thought of a wire dangling from the windshield isn't appealing, so I'm considering an installed detector like the Escort Passport 9500ci (

Has anyone talked to a Tesla rep to see if a Tesla service center would do the installation? Because the anatomy of Model S is unlike any other car, I don't know if I would trust another installer to work on my car.

Florida service centers have been installing K-40's

Anyone stick their V1 on the windshield? I bet the same issue that bothers the tolltags will make the range on a radar detector drop. The K40s and remote Valentine's will be better but more difficult to install.

mikhaila- are you related to, or go to school with Nick?

@Geek EV
As a long time do-it yourselfer, I added parking assist sensors, which required a display at the rear-view mirror and a wire to the frunk area (and a bunch of other changes/wires). I quickly concluded that going through the firewall is a huge pain. Remove the center-back frunk cover, and take a look. You'll see the front firewall (I think there are two, about 1" apart). This is almost impossible to get to from the top. From the inside, you'd likely need to remove the dash. I must hand it to Tesla, that they've done a great job of making the free space usable area in the frunk.

Anyway, the quick fix for me was running it along the outside. It sounds crazy, but it's barely visible if you look for it when the door is open, and completely hidden otherwise. The parking sensor job is far more complex than running the power line for a radar detector, but the pictures and details should make a radar install a reasonably easy project. The power can go to the same ACC+ point in the fuse box that I used for the parking assist system.

Valentine One doesn't work in the Tesla. I sure miss using mine.

I do know that Valentine has contacted Tesla regarding this issue. I don't know how things have progressed since the initial contact.

Really? Is that because of a coating they put on the windshield? Too bad, I love my Valentine One and would happily install it in this car as well.

For anybody planning a windsheild mounted radar detector, I mounted a radar detector and dashcam to the rearview mirror stalk. The radar detection seems fine, though I haven't picked up any LIDAR yet to verify if it makes it through the windsheild (I suspect it doesn't). Incidentally, if you pop off the plastic housing on the mirror stalk there is a wiring harness with switched 12V + (red) and - (black)that I tapped into to avoid having to run the wires down to the fusebox or under the dash. The plastic housing separates into 2 pieces if you pull/pry them apart.
pictures here -

In Austria you can buy a V1 into the bumber with a Laser intercepter, I use this for years in my car/motorcycle and it save a lot of money and my driving license. ;)

I Thing this Must be work in the TM cars too, there is not windshield between

Check out this implementation concealed directly into a specially constructed rear view mirror (see the middle of the article), very impressive:

Or, a concealed radar detector (connected/threaded to nose cone implementation) mounted within console perhaps):

What's the latest verdict on radar detectors and model S?

I have a valentine 1 and in San Diego where they only use Ka band. Has anyone tried it? Can you confirm that it doesn't work?

If not, and you don't want to drop 2 grand on an elaborate wiring job does any wireless radar detector work near the rear view mirror where supposedly reception is better?


This has been discussed in various places. All the threads I've seen say the Valentine needs mounting externally to function.

Not sure why you all have problems but my escort passport is mounted on the windshield and I have had no problems detecting radar including laser

Passport 9500ci custom installed with display integrated into rear view mirror

Perhaps they were trying to directly access the 12 volt auxiliary battery? I have an Escort 9500xi directly wired into my Lexus LS430 at the base of the inside rear-view mirror. Was hoping to find a similar install would be easy but perhaps not.

I've installed my Belltronics just below the roof above the mirror on the passenger side (the dotted area of the windshield). I pulled power from the mirror base. The detector shuts on and off with the car.

I do get full signal indication when I face a radar gun. Don't know if the signal is attenuated any due to the windshield, but enough makes it through to be useful.

Can you give us some details on the mirror power taps?
Any pics?

I'm happy with my K40 in my Model S, had it in there for over a year and I calculate it has already paid for itself in tickets saved.

Mine was the first one on the site! ;)

I have a Valentine One installed using the power setup shown in a video earlier. It is mounted on suction cups just to the left and above the mirror. It has worked flawlessly for signals from the front or the back. I am note sure why others have had problems. This is a new Valentine One. I don't know if that makes a difference versus some of the earlier ones.

@minervo: This thread shows how the mirror cover comes apart:

Once I had the cover off, there's a connector inside for the mirror with a black and red wire. I tapped into those by tinning my new wires and sticking them into the back of the connector. That way there's no permanent modification to the Tesla harness. I zip-tied my wires to the harness to make sure they won't come loose.

Great, thanks.

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