if you want to make it right, then take a look in
this thread.
ok - it's german, but the pictures are saying it all... ;)
our install in the 451's begins about march or april - it's fu..... cold right now and the damping-stuff don't likes low temperatures.
when it's done, or in the making, we are posting an "install-guide" at our team-page -
smartfever.de.
well - also german, but as i said - pictures are showing all.

oh and with our old smarties we won some sound-off's (sound-quality) and one of our members where german db-drag champion with his smart...