thtguy

2005 C55
EPC lists as
Command APS
Audio 20 CD Radio, USA
CD Changer
I don't see anything about Logic7 or HK but it is an HK system.


So I was driving this morning and realized the music wasn't on. Stereo was on so I figured I just turned it all the way down last night. I went to turn it up and nothing. tried tuning to different stations, still nothing. it would seek and find station but not play audio. switched from FM to AM to WB still the same. So I thought great my amp went out. tried to switch to in radio CD could change tracks but no audio still, switched to CDC, display said, NO CDC so that got me puzzled then went into audio settings, the options I had were fade, balance, treble, bass. didn't give me all my surround options. I had been thinking about upgrading to a command Head unit so if it is the HU then I have an excuse. Does this sound like issues with Head Unit or AMP? any suggestions on testing. would STAR diagnostics show anything?

Thanks in advance

thtguy

also when checking out used Command units I am finding a butt load of part numbers. I am specifically searching for facelift 203 units but here are some of the part numbers I have found.

A2038704189
A2038274842 - Looks like this came from a CLK
A2038705489
A2038701189

thtguy

pulled #64 fuse put back in, everything is working now.