I could be wrong, but I think that the HU-803 system in the 2.4T gives you 9-speakers and the AudioMax system in the T5 gives you 13 speakers. The AudioMax speakers are made by Harmon-Kardon (HK).<P>Maybe some 2.4T owners with the HU-803 can answer this question better.<P>Here is a good resource for you. It is a <I>.pdf</I> file (1.58MB) so you need Acrobat Reader to open it.<P><B><A HREF="http://sc2.vcc.m.volvocars.se/bilder/pp/s60/options/audio/audio.pdf" TARGET=_blank>Volvo Audio Brochure!</A></B><P>-Drew<p>[This message has been edited by InDy (edited 02-03-2002).]