Actually, if you look closely, it is *not* a hex key, but a 5 sided
proprietary fastener. You may be able to jam a hex key in there or , as
I do, use a small screwdriver jammed in there, or pay the price for the
correct tool from BMW. Since you appear to be a car stereo business,
I'd suggest the latter so you don't bugger up the customer's screws.
Actually, if you look closely, it is *not* a 5 sided key - it is now
a standard allen key. Since the E39 radio won't work in any other car
BMW did away with the foolishness of the anti-theft mounting used on
Just thought you might like to know..
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