goodcat

Despite multiple attempts to obtain a signal, I cannot update my subscription. The people at Sirius insist it is a problem with my radio, but it is a factory installed unit on an '07 E550. Anyone else ever have this problem?

DWP

I'm uncertain about your reference to "update", but I assume from the rest of your post that you're trying to initially activate Sirius service.

Can you hear the "pre-activation" channel on Sirius? I'm not sure of the number, but it may be Channel 184. Anyway, it's a channel you can hear before your radio is activated. Check your Sirius documentation. If you can hear it, the issue is probably with Sirius. If you can't hear it, the issue is probably with your car. You might be parked in a "dead spot", which Sirius apparently has many of.

Barry45RPM

Also, as stupid as it sounds, double check that you are giving them the correct Electronic ID Number of the radio.

ATS

Also, make sure your car is not in a garage and has a clear view of the sky. If you get 184, you should be able to be activated.

coolbep

so what is going on if you cannot hear channel 184??
anybody can help?
i also try to activate on a 06 s430 and cannot change between channels and always saying aquiring signal untill i took off the antenna cover and then it is showing me no subscription on the dashboard but still saying aquiring signal on the head unit and still don't hear anything and cannot change channels

bonehead

Call Sirius. They can resend a signal to your unit which will hopefully do the trick.

sgaar

This is a new car so take it to the dealer and let them solve it. Anyway, it was supposed to be activated as part of the delivery so you wouldn't have deal with it.