Car was running great then the battery went dead so i put another one in it and it was idling low and stalling when u stop sometimes for a few days then it was fine for like 2 weeks and now its doing it again but now my dome light wont work,power door locks wont work,and the radio and trip odometer resets every time u turn the car off.....car starts up great and runs fine when its not stalling when u stop...can someone please help so i can fix this

 

loose ground connection

 

bad alternator

 

if it was the alternator the battery would not charge and he would have to jump start the car. check all ground connections, and also try cleaning the terminals, where the battery hooks up at