i have my own DAB pioneer head unit fitted in my cab as apart from holidays im the only who drives it.its got a cd drive plus has a lead where i connect my 32gig usb to which can hold over a 100 albums at any one time.i have mainly metal stuuf on it from aerosmith to def leppard to metallica iron maiden slipknot.even got stuf from a band called band maid who are a jpop rock group which is all ladies which sound awesome.also have elo and few other classic albums on there.im for ever adding and deleting stuff every few weeks.