Hey guys, I just purchased a 83 FB series 2 RX7 and I am unsure about what this button does. It is located underneath the driver side window button and next to the cruise control. I am assuming it is the rear wiper because I have not found anything for that, but I do not have one on right now. Also I am wondering how I use the headlight spray washer thing right in front of the headlight's.

 

might be the wiper. I know my one for my 85 was a little better located.

 

Yes sir, wiper it is! i dont know anything about the headlight sprayers because mine doesnt have those! but good luck