Hi It was me, i purchased a CD Player from Argos.
You NEED a SHOCK PROOF one, with a Lead long enough to fit in to Auxillary Socket.
An ordinary small Headphone type.
Problems are: There is not enough scope, to take up Volume, with the cars entertainment system,
you will have to Physically open the Glove Compartment, if you store it in here & TURN IT ON,
Press PLAY & Then up the Volume, on the CD Player.
It's OK, but nowhere near as having a proper one fitted.
Best get used to using your USB INPUT & Learn to copy your wonderful CDS, on to Flash Drives,
or in fact, I go YOU TUBE:-
SEARCH what I require, Download & Convert them all, to MP3.
It takes a log time, to do this, but it can be pleasurable.
If you cant or don't want to do this, ask a Friend.
Don't go using any more than 16 GB to a Max 32 GB Flash Drives, because it's far too much, for the system to handle, at times.
Also you cannot connect an External USB intended for any Computer, I have tried all of this.
ENJOY.. It took me a lot of Agony, All my many hundreds of CD's are scattered all over my home & not in the car.
Of course, its not as simple, a task of finding exactly the TRACKS, or SONGS you want.
However, using the Built in Entertainment System, its POSSIBLE to ASK it to PLAY a SONG or TRACK.
It again can take time & some patience. But stick with it.