So i f*cked up bad, and dissconnected the battery with out the dvd drive spinning all the way down to a stop, and i killed the drive, so i ordered a new drive. paid just over $700, bmw quoted me just under $4000 for a new one installed. Anyway, should i be looking out for anything while installing it? is there a DIY for this? The one i ordered is off ebay running V32 with speed light warnings. Has anyone done this before?

Thanks in advance.

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2004 4.4
Olivine Green on Napa Black Leather.
Fully Loaded Including Sport.
Adjustable Height w/ Staggered Tires.
No Mods