I think Bill O Reilly.
You should go to an oreillys or advanced auto parts
There are 12 different O' Reilly Auto Parts stores located in Jacksonville, Florida. Then you will find another 8 O 'Reilly Auto Parts stores just slightly out of the Jacksonville area.
Scottsdale auto collision
O' Reilly's auto parts, currently. 10/24/2010
Charles Siroonian
Danaher Corporation
take it to a oreillys or a advance auto or auto zone and have them check the alternator
Some have means to cut new keys, if they have an original key to go off of. If they don't, then you would need to go to a dealership.
The most well known auto parts stores that are nationwide chains are AutoZone (http://www.autozone.com/), CarQuest (http://www.carquest.com/), Napa (http://www.napaonline.com/), and Pep Boys (http://www.pepboys.com/). Oreillys Auto Parts Store started as a regional chain and they are now in at least 38 states across the country.
Kragen's auto parts business shops were founded in 1947 mainly in California. They are owned by CSK auto who run their shops under 4 different brand names including Kragen.
It was previously held by General Parts International (GPI), however on 16 October 2013 the entire company (American, Canadian, and International) was purchased in an all cash deal by Advanced Auto Parts, Inc. of Roanoak, Virginia.
You could find them in any auto parts store, or you could get them from a Mercedes Benz dealer, one that owns old parts. You could even find them at an online auto retailer.