I e-mailed Peripheral and got a response about the compatibility issues with the Concert radio and the AUDPAN98 adapter for the aftermarket CD changer

Thank you for your inquiry.
We have seen problems with our adapter on 99 Audi's with the Concert
radios. We do not recommend using the AUDPAN98 on the Concert radios.
Thank you for your interest in Peripheral products.
Best regards,
Technical

I thought I'd share this with the forum
Greg

nt

$215 for the 6 disk. Is it really an OEM changer?

I got mine from Autotoys a few mounths ago and it's a Panasonic 601EUC. It works just fine with the Peripherals adapter. The random function does not work(and won't work because of incompatibility), other than that it's perfect. Takes about 1/2 hour to install. I've posted instructions 1000 times on this board. Just search for my name. Good luck.
-- Yan
99.5 1.8TQMS VBlack/Onyx

It's not OEM, it's OEM-compatibl(difference is no random or Audi logo) I did get a free Audi Key chain with mine, though. I'd rather have the $27.50 in my pocket but that's the way it goes. Mine has the PIE adapter and works like a champ!

Just pray that they don't make a mistake on your order, such that you need customer service....