A friend of mine wants a system in his 05 BMW M3 E46.

Have you guys got any idea what will fit? Does it need a dash kit or interface? Are there any pre made boxes?
I assume he wants a high end head unit, components and sub.
Any ideas would help,
Thanx,
Tom

 

Not sure if the year matches but here is a start!
500 HP BMW M3 goes Hybrid Audio - DIY Mobile Audio

 

Thank you Avid, thats a cool car, but i don't think he wants exotic modifications to the car, I asked, What FITS?

 

Does it have a stock stereo or one of the premium stereos?

 

crutchfield says:

front doors : 5.25"
rear deck : 6.75"
trunk : 6x9