I had a brake switch put in my car and after that my speedometer quit working my

What is your question?

Okay I had a brake switch replace and now the speedometer doesn't work my key fob quit working and the transmission acting or walking what could it be? 1994 Volvo 850 Turbo. I also had some Tire work done on the right front and I will speed sensor put on the right front.

What makes this problem better or worse?

Nothing

How long has your 1994 Volvo 850 had this problem?

A few weeks