u/MrYOLO_OP

Im trying to install a train horn and these are the parts I have and im having trouble wrapping my head around how everything gets wired now I know the fuse block should just go into the battery but im not sure how it goes from there i know the button panel has yellow as ground and I believe theres a red wire acting as power that comes from each button so does the red wire from the button just run to the red wire on the horn and then ground out the horn and if so where do they connect to the fuse block the only experience i have with this is underglow on a different car and that was a simple kit you just connect red and black to the battery but I wanna be nicer and safer about it because I also wanna add fog lights and a light bar later on

So do the grounds from button and horn run to the fuse box and then the reds to each other and it works? It makes sense in my head but I cant be certain

I'm going about 60 mph in the picture above, the speedometer, odometer, and trip gauge stopped working. Based on the trip meter it stopped reading around the time I got to work and it was very muddy does anyone think that could have been what caused it. It's my understanding these analog gauges are spun by a wire or cable and its usually on the engine or transmission. Does anyone know where the speed sensor is on my 1991 Suzuki every DB51V. I haven't been driving it since I noticed the speedometer wasn't working and I'd really like to get it working. Does anyone know if the old one is repairable or where I could buy a new one?

Thanks for any help