Why do i only get 184 and no other stations

You need to put the van out in the open with the radio "ON" (car off) and leave it on CH184. Call the 800 (855-whatever) number and ask them to send a "refresh signal" to your radio after you give them the Serial number from channel 0. Wait about 20 minutes, you should eventually see an "updating" message on the display; then see if you get channel 5; if so, then you're good. Again. Car off; radio power on, van out in the open; call Sirius and ask for a 'refresh signal' for your serial number. You'll have to call during the day when they have customer service reps available. Good luck; call on your cellphone and they can walk you thru these same steps.