Some more Bling...
The stock steering wheel on the 75 was never one of my favorites, so I pulled out one of my BMW 320IS Sport Steering Wheels from my stash of parts and decided to do the upgrade. I have done this conversion a couple of times, but refreshed my memory with the excellent write-up on the BayArea02 site. I decided not to modify (trim) the bottom of the plastic shroud and went with the 1/8 inch spacer instead. My local home depot didn't have any 1/8 inch aluminum stock, so I used a brass rod and a metric socket as a mandrel to shape a round spacer. For the horn button, I stripped out the original horn plunger from the stock steering wheel, used a Micrometer to measure the diameter and found a drill bit to match the size. I drilled out one of the holes in the 320IS steering wheel, threaded the horn plunger leads through the widened hole and press fit the horn button. I installed the spacer, replaced the washer and nut holding the steering wheel and torqued to spec. The original horn plunger has 4 terminals, I used electrical tape on 3 of them to prevent them from shorting out and the last remaining one was connected to the 320IS Horn button. I snapped the Horn button in place, turned the key and was greeted with a shrill beep we in pressed the horn button, job done!
Before and After Pictures...
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