Originally Posted by synikol
Hey folks... I'm thinking of having an after market alarm / remote start installed in my '06 limited. I have 2 factory key fobs which work, but they are too large to fit into the rfid bypass box. I live in dallas, and was told by a local chrysler dealer that valet-type keys were not released for the crossfire. I have searched the forum and these keys are mentioned in a couple of threads in a way that make me believe that atleast a few people have found them. I've read about flat keys that were installed in newly purchased tumblers (one of the members bought a glove box tumbler that had a flat key with it...) but it was simply a mechanical key with no rfid chip in it.
Any help would be much appreciated. I have to say, I love the car, but it's a little strange driving a "hybrid" that neither chrysler or mercedes-benz service people fully understand.
I went through a pretty big hassle last year when I had my Python 1 Mile range remote start/alarm installed, as well. I ended up contacting Mercedes, as they are the ones that make our keys, and they stated that they can't/won't cut a valet key with the rfid chip in it, so I had to end up just going with another standard key fob.
What I ended up doing was purchasing an extra ignition sensor ring from Chrysler and permanently mounting the extra key fob inside of the sensor ring. I then used this setup to provide the ignition signal, as it was guaranteed to work.
I've had remote start in every vehicle I've ever owned (well, since I was out of high school, at least...) and the Crossfire was by far the most difficult to get to work.
It was bad enough getting the remote start portion itself to work, but it was another issue altogether to get the door lock/unlock function to work and to override the vehicle's stock alarm system.
Unless you have an in depth working knowledge of MB wiring setups, I would highly recommend taking it to a reputable install shop that does, or finding someone who can help.
Just my .02
