Yea, I work in the AG industry and know a tire guy that is big in farm tires, and I asked him if he was interested in the bias tires coming off. And he said yes as long as I don't put any hours on them. He wants them as new as possible. So, I am not going to even use it, we are going to change them over after they deliver it to my house. It is going to make a big difference. The bias tires have a rounded sculpture and very small footprint, but the radials have a square shoulder, and flat footprint and that puts more bar on the ground and better traction.
Found the wiring harness adapter for putting an aftermarket stereo in it. Oddly enough the plug that is in the tractor fits a VW car. Weird. Anyway, I found the adapter and Alpine Radio at Best Buy for 109 bucs and it has cd, and aux and USB hook ups. The wiring harness adapter was $20, so I am into it for $130. Need to get the antenna and it should be plug and play, without cutting any factory wiring.