What model of Windjammer is it?
My SS (I believe the final model) doesn't use BMW turn signals or headlight, so I bought some BMW turn signals and a stalk off ebay, and bought an aftermarket chrome (ick!) headlight that uses an H4 bulb, to convert mine some day. Actually I want to be able to remove and install the fairing, as I love it for winter riding but hate it during the summer.