Sirius reception is great.
Recently did a 1000 mile car trip and had one drop out for 1 second, through mountains, etc....
May I repeat... NEVER put the antenna ANYWHERE inside your car. Not on the dash... It goes on the roof. PERIOD.
With the really high elliptical orbits of teh norther satellite combines with the XM-like geostationary satellite in teh south, if you are having reception problems, there is one of 2 causes:
#1) You antenna is a few years old and it has been found that they can corrode inside, and you should get a new one.
#2) You've gona against Sirius' recommendations and have done something stupid like putting the antenna on your dashboard.
PS - Never, EVER let some lazy installer at Best Buy tell you that it's OK to put the antenna on the dash. That's unacceptable.
Read the manual for your radio. It shows you wheer to mount the antenna, and not one option is inside the car. On top of that, the manual states, and I quote:
"Warning: Be sure not to cut, damage, or punture the external jacket of the antenna cable during installation procedure. damage to the antenna cable can degrade the sirius signal or make it unavailable...... Do not shorten the cable by cutting it. Doing so will cause the antenna not to function properly."
And on the DOs/Don'ts section:
DO NOT MOUNT YOUR ANTENNA INSIDE THE VEHICLE, FOR EXAMPLE ON THE DASHBOARD.
Folks, many of your are causing your own problems.
Here's an example of a manual from a radio:http://www.tss-radio.com/images/SV5TK1Manualsm.pdf
Pay close attention to pages 20 and 34.