XM Radio Hacker Expert Requested

Can someone PLEASE provide "EASY" Step-By-Step instructions (for dummies so-to-speak) on actually what Brand(s) and what Model Number(s) of XM Radio Receivers can currently be hacked into - plus Easy to follow instructions for us ALL.....no "Goobee-de-gook instructions" - that must be translated by a rocket scientist. And if anyone out their does provide or suggest ANY helpful information or suggest any helpful internet links.....please check this information out before posting them here - to make sure they are "VALID" and currently "UP-TO-DATE" for the year 2005+. This would make it EASY and a "Blessing for ALL of here" at this Forum.

Thanks a million!!!!!!!!!!!!!!!!!!!!!!!!!!!!!