OK, well it's not really specific to Bugless Beast, as its a well documented issue with the Droid, but I didn't have this problem until I moved to Bugless Beast. Anyways...
When you have the Droid connected to an external audio device (home Stereo, or Car) through the 3.5mm jack there is a crackling sound coming from the left side speakers, when the volume is turned up all the way on the Droid. If you turn the Volume down to 70% for example on the Droid, then the crackling goes away. It's been documented as a fairly common issue. It doesn't matter what the audio source is; Stock Music app, Pandora, Slacker, etc. all have the same problem.
However, I never experienced this problem when I was running my stock 2.01 firmware. Once I rooted and went to Bugless, the problem that others had complained about, suddenly appeared for me. Sure enough, I can restore back to my nandroid backup of my stock 2.01 system and the problem magically goes away.
Maybe this isn't the proper place to post this, as I know it isn't specific to Bugless only. Still I though my experiences were worth posting. I think I can attest that the audio crackling issue is not a hardware issue as many have assumed, but is definitely firmware related, and maybe can be fixed.
I'm attaching a screenshot of both my Stock 2.01 info (no crackling), along with a screenshot of my Bugless for reference.