Positive all connections are seated. There's only one connection to the radio from the tuner. Perhaps it's the channels I listen to (40-45 and 50-55) that don't sound all that great. I heard a few songs on Sirius that I play on the norm from a CD in MP3 format encoded at 128kbps that sounds ten times better. The songs from the sirius just sounds muffled and not as clean. The bass doesn't hit as hard and I have to turn the HU up past the 30 mark for it to be heard over the D-tec (w/the windows down). I do that when playing an MP3 CD and I won't have my hearing for very long.
