Bought sirius starmate replay, finnaly had a chance to hook it up in the car today. Am having a problem with sat signal strength though. I live just outside of Philly so the Terrestrial signal is perfect. However It almost never locks in on the sat signal. I have the antenna placed on the roof about a foot in front of the fm antenna. Has anyone else had this problem. Also would the ridges on the top of the car interfere with the signal reception? I am considering putting it on the insert but I already ran the wire and hid so I don't feel like doing that again.
Also I am looking into hardwriring the power into the fuse box. The car kit comes with a cig lighter and from I've read the starmate replay is 12v, whats the best way to do this? I found a add-a circuit adapter for the fuse panel which basically plugs into the fush location with a wire lead out of it but it says no more than 10 amps, don't know what the replay requires.
Any help would be greatly appreciated.

Thanks,
Randon