Hoping maybe someone here can shed some light on this.....
I have a 2008 LS460, came with stock stereo (non-Mark Levinson) and navigation system. It does have the HDD for the navigation. I wanted to upgrade to the Mark Levinson head unit so I could play DVDs and record music to the HDD.
I was able to acquire a ML head unit, had it installed (with non-ML amp and speakers) and everything works fine except the record function to record music to the HDD. When I play a CD, the record buttons show on the screen but they are not hilighted so they can’t be pressed.
Does anyone know how the head unit connects to the HDD? Is there a different wiring harness for ML system than non ML that might have some extra wires?
I was able to get into the service menu, it shows the HDD and lots of space available for music storage, I just can’t get the record buttons to light up.
Any ideas? Thanks.