OMG!!! PLEASE get rid of them!!!!
These are ancient Nokia speakers... they are probably built well... but they sound about as good as the speakerphone on your Nokia phone!!! Hahahahaha!!!
The wires you see are the ORIGINAL wiring harness... the wires connected are now the new ones from the new aftermarket HU.
I still kept mine after I upgrades to components... just in case I sell my car and the next owner wants all the original stuff... besides, it does have the BMW roundel.
But these tweeters sound like crap. Go ahead and change them.