Audi Repair: removal of Audi Battery, audi a4, rear seat

Question
I have an Audi A4 2003 cabriolet, can you advise how you remove the battery. Thank you  

Answer
I don't have a manual for this car, do you know where the barrety is?  It could be under the hood at the left front, it could be under the hood behind the firewall, or it could be in the trunk, under the rear seat, multiple places where Audi has hidden them before.  Once you do find it, be sure to remove the negative terminal first, and make sure you attach the negative terminal last when installing the new battery.  Normally the battery is held down by a clamp secured by a 13mm bolt,  but let me know if you cannot find it and I will get the required infromation.  Your manual might have the location too.  Let me know,  Jan