Car battery went dead now no xm radio

SOURCE: XM Satellite Radio

you have checked all the connections? which make and model is it so i can be of further assistance...

SOURCE: "not ready" message on XM radio

Remove the Audio Fuse and then put it back in and the problem is solved. So frustrating that I had to find this solution on another site as both the dealer and XM had no idea how to fix it. Dealer tried to tell me it was a bad radio and I'd have to get a replacement from Hyundai.

SOURCE: xm radio

Egads, I imagine that the electrical system in your car is not properly shielded. You can attempt to locate the unshielded wires and cover them, shield the XM reciever (the interference is most likely within the reviever, not the antenna), or try repositioning the reciever in your car- unless it's in-dash. If it's in-dash, it may be that some of your audio cables aren't properly shielded also.

SOURCE: How do I get a signal back after I have a dead

With all the anti-theft deterrents placed in cars now if you disconnect the battery so as to bypass the alarm (even though all your doing is replacing the battery) in allot of cases the factory radio disables itself to render it useless to someone stealing it. The reset code should have come in your owners manual and if you don't have it then you will have to go to the dealer and prove ownership. They should provide you with the needed code but then may charge you to reset it. In the future if you replace the battery and the previous one isn't completely dead a set of small jumper wires to keep 12vdc on your electrical system will prevent this in the future.

SOURCE: 2008 Hyundai Azera XM radio "not ready"

I had the same problem. My 2008 Hyundai Azera had 37,800 and my wife went over a speed bump the XM radio went off and displayed "Not Ready". I raised the hood, pulled the negative battery cable for about a minute, replaced it and fixed the problem. Only issue is, this happens every couple of days. I'll probably continue to do this till my xm subscription runs out then to heck with it.