renault kangoo electrical fault?

hello all
having bought a 2005 expression I have found quite a number of small problems,,the heater fan only works on no3 full blast-the rear fog light doesnt work-the rear wiper is just on or off ,and when you swith it off it just stop,s middle screen -the outside temp guage doesnt work at all-and the radio paddle the same ?????I am wondering if all these things are associated, maybe a relay or fuse etc have checked the fuse box all seems ok and the 2 relays seem ok??
any help would be greatly appreciated
regards peter
ps happy new year