Is it too late to install?

[Matt19]

When I was at the dealorship purchasing my car, i asked him specifically if it has the monsoon speakers...he said "No". I shrugged, and said "hell, owell" but now i totally regret it. What I didnt realize was that no monsoon speakers means no MP3 playback capabilites. What I am wondering is...there is no way im putting a "system" into my H3, i like the console the way it is. So is it possible to have the dealor install the upgraded console with a better cd player...and maybe the speakers also? Or do they just do exterior work?hell i'll take the 6disc indash, but i just dont want to change the interface.