Digging up old thread, but I've got a similar issue with my CD6000 in my 2008 Focus, not phone mode though, just keeps going off and on. Comes on a plays to itself once the car is off and locked. Goes into the 1 hour play, but dips and out so as far as I know the hour keeps starting. I've removed the fuse else I'm going to find myself with a flat battery.
When driving comes on goes off, controls do nothing. ???
Help required, did you ever get to the bottom of this or did you just replace the unit?
Think there is a known issue, something to do with the ribbon in the head unit. I believe its a Ford Fix...
Thanks, looking at an aftermarket Alpine Double Din unit now with fascia adapter plate and plug in looms etc. so steering column controls still work.
Not cheap but better than gambling on a second hand Ford unit of ebay that's just as likely to develop the same fault in the future.
Since I had to replace the unit in my Fiesta within a month of getting it too I'm thinking Ford stereos just aren't built that great!