Click on the different pic which shows the one for X5, which is exactly the same as the ebay one (I believe they are for E36 as well).

It's more expensive only because it has the plugged wired already at the end. Otherwise I'm pretty sure they are identical. I got the ebay one without the plug from a local shop and just cut the wires!

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Here's the Photo Album of my (sold) X3; Album of my (newish) X5 is on the way!
(WARNING: read this before you buy anything from Umnitza)