As the title says I had an old android tablet (Kocaso brand) that my daughter was using. One morning she brought me the tablet because the back plastic case had popped open. After opening the case I found the internal 3.7V battery had swollen to three times its normal size, and promptly removed it. The tablet still functioned normally with the DC charging cable plugged in even with the battery removed. It was at this time that I decided to add the tablet to my Subaru Baja as a media player (no built in GPS, GSM, or Bluetooth for any other cool car specific functions). Along with the tablet I am also installing a replacemet cd player that has a rear (behind console) aux in port that will be used to connect audio from the tablet to the vehicle's speakers.