Swapped steering wheel and turn signal's messed up

[2mAn]

In the bag are two screws. Those screws affix that shiny new part on the steering wheel splines. Quick search of parts catalog will get you its part number.

#4 & #5 yes?

https://www.realoem.com/bmw/enUS/showparts?id=1554-USA-05-1987-E30-BMW-325e&diagId=32_0609

[TimeMachinE30]

03 SLIP RING 1 32331152896 $10.25
04 Fillister head screw M3,5X8 2 32331117126 $0.50

Yes. $11.25 for new, OEM solution.

[2mAn]

Awesome. Thank you