Hello guys, sorry for my english

After a radio disc installation my speedometer and cruise control stopped to work. Now, i can enable the cruise control, but i cant set the cruise speed, probably because the speedometer doesnt work. I guess its because of a burnt fuse, but i cant find which one responsible for the speedometer. (I have checked those of the cruise c. and its just alright). Could u help me with that?

Tnx