SIRIUS 8E0 035 593 L for B6 ?

[sa3dos]

I am about to purchase a SIRIUS sat. radio receiver

Part number: 8E0-035-593-L


I noticed that the last letter in the part number is designated for something, any ideas about the L ?

I have '03 AUDI A4 (with Navi-Plus Headunit)

[IronAudi]

as long as you have a sat button on your radio it should work fine. may want to call they stelership on the L part.

[sa3dos]

But no RNS-E Radio has SAT button ? I don't know if it exists