is COMAND an XM or Sirius radio, or XM-Sirius?




When my wife's 2007 E350 was still getting Sirius when we bought it in 2010 (still does today) I remember reading on the W211 forum that your radio needs to be on when Sirius sends the "kill" signal, or it won't receive it. Freeloaders getting the service are a low priority for Sirius, so they haven't put much effort into finding a better way.
When I first got this CLK I thought it was getting Sirius, but only Sports (which I don't care about). I checked back occasionally and was only getting Preview, but now I'm getting lots of channels, but not all (maybe I just didn't know how to operate the darn thing when I first got it; it uses the up/down/left/right toggle to get around).
As for it working, there are a few possibilities. Sirius often turns on old radios for a limited time in order to entice people to subscribe. You'll get a free week every so often as a trial. Another possibility is that the radio has a "lifetime" subscription (this is the case with mine). Some factory-installed Sirius radios came with a 1-year free subscription and if you called within the first 30 days, they would apply the value of that year to the purchase of a lifetime sub resulting in a pretty good deal. The lifetime sub goes with the equipment, not the owner, so unless the owner specifically called to shut it off, Sirius just leaves it on forever.
And yes, for temporary or non-lifetime subs, the radio has to be on when the kill signal for its serial number is sent. Sirius has so many "dead" radios that they don't send kill signals out very often. They do tend to do this sort of housekeeping during popular events - like during= coverage of live sporting events.
I know a lot of people are down on Sirius and don't want to pay for it, but that's about all we listen to in our cars, and I listen to in in my office as well (mostly classical for some stress-reduction). I think I have two lifetime subs and two radios I pay for. I think it's a decent value. I like having no commercials on the music channels and getting a crystal-clear digital signal.





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Here's the retrofit instructions:
http://benzbits.com/w209/RetrofitSirius1.pdf
http://benzbits.com/w209/RetrofitSirius2.pdf
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