I have a 04 S4 everything except Nav. I was wondering if the RNS-E is a plug and play unit for the Bose System? How hard is it to do install? Also does anybody know a link where I can find instruction on how to install? Thanks in advance.

<ul><li><a href="http://www.navplus.us/forum/viewtopic.php?t=462">Everything you want to know</a></li></ul>