If you have a cable, wifi modem connection you have to call your provider.they will set you up with a NAMED password that your ipad, ipaq, eyeball will accept.

What telephone co.??, What type of card?? debit or credit
Almost all companies [ telephone,cable, utilities] that have a payment plan can WITHDRAW funds if you let them .You would have to sign up for the play. They should NOT be able to do that on their own.

If U are going to play music in car CD play, spread the music to two cds. There is no way to " compress" music the way you want