So i bought this used off a friend of mine and its in great condition, and for 30 bucks i couldnt go wrong 
. Only problem is that the battery does not hold a steady charge, i was wondering does any1 know whatthe part number is for a battery? and where i can actually get one? 
another thing that doesnt work is the speaker, which i dont mind bc i always have my music on in the car anyway, but can it be changed?
Thanx for any help in advanced thank you!! 