so everything on my Xm works, even navtraffic except for the presets, whenever i set them and then turn off the car, they arent there when i turn it back on. They stay if i turn the car off real quick but not if i leave it off for a bit. any ideas?

make sure the yellow wire isn't losing power when you shut the car off.

yep you probably have it hooked up to a remote wire or somthing. your xm unit needs to be connected to a constant