2007 Q7 Sirius Module
 

Hi Guys, I am new to the forum and have searched for some answers to my question but haven't come up with any answers. I want to add the Sirius module to my Q7 but I have been unable to get a couple of things resolved before I lay out the money. First off, has anyone come across any sort of instructions to do this? I don't want to make a mess of things and I keep reading that it is easy but nobody posts any details, pictures, diagrams etc. Also, I found a module on ebay for 200 compared to 704 at my local Audi dealer but the part number is slightly different. I contacted the seller and he assured me that the module would work based on my VIN. Can anyone tell me if thats so? PN is 4E0910593H the part number from the dealer this morning was the same with an L at the end.

Thanks for the help all.