Greetings, I posted some questions in the 5 series forum but thought the audio questions might get better answers here. I am considering buying a used 5 series wagon ...either a '94-'95 or a '99-'01. As an audiophile I will never be happy with a OEM system. Whatever car I end up getting I have plans for a high end "ubersystem".

Is there any caveats that I need to know about? I realize that the e34 is more conducive to a standard DIN than an e39 ...but I also realize that anything is possible with enough time and $$$. What is needed to mount a DIN HU in an e39? What about speaker placement for either model? Has anyone added more sound deadening to their cars. What areas produced the greatest results? Any other advice/info is appreciated.
>^..^<