Funny thing... today the entire system started working again... I just turned it on, and adjusted the speakers (fade + balance), and all of the speakers were working!! I still heard a little crackle from the driver's side dash tweeter though...?
Anyway, I guess I'm ok for NOW... *knock on wood* !!

But now I have some unexplainable climate control quirk!

Thanks guys for the help... I might need this information if it goes out again....!

__________________
2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)