Hello, and welcome to the Forum.
Dissatisfaction (or total confusion) with the head unit is not uncommon !
Do you know what model Alphie you have ?
I find the CD auto recording feature really convenient.
Eightseaterblog.com has published a very good guide to the (usual) HDD head unit.
I think Eightseater covers how to delete tracks.
However, your unit is a different model. Is there any type number on the bezel of the unit ?
However, his blog may be helpful to you.
I suggest you give it a try.
Jenny, a member, has the same unit, I think !
I need to check and ask if she has an English manual for it.
She certainly discovered how to change the language to English; which ought to help you.
Be careful if you decide to replace your unit.
DO the research, as with many replacement units you may / will lose the cameras and steering control functions.
There is lots of info on this Forum.
Happy reading.