Buying CDs for the car

I had my VW for six months before I realized there was a CD player in the glove compartment. Now I can dirtbag my way to work. Unfortunately my children are grown and I can no longer embarrass them blasting music when picking them up from school. Anyhoo, less than $10 each from a record store and next to nothing from thrift shops. Buy before the youths make them trendy again.