Audio City is your typical car audio shop in the city of La Puente / Hacienda Heights. They also sell things such as rims/wheel packages and in-car LCD screens.
The thing that is lacking about Audio City is the quality of service. You'll walk in and no one will seem to notice you or seem eager to help you at all. Also when you ask for some service, they kind of blandly answer your questions; as if they had better things to do then answer your questions.
The interior decor and cleaniness is also something that could use some improvement.
My advise is to probably look around somewhere else; unless you can get some really good deal.