How do I get the audio code for my '98 3.5 RL?

Dealer said it should be in glove box...

It was located in the trunk, look up when you lean into it. It was approx center between the two speakers. By the way it was a 5 digit number...I heard it was supposed to be six! The sticker also had some other numbers on it @ 10 digits, I took the chance on the five digit - with luck!

 

You can call an Acura dealership. They usually can give you the code if you provide them with the VIN and the serial of the unit.