which looks like this
the temp display simply wires up to the time clock with 3 small wires .
ok on the time clock there is 4 wires (all are numbered) 1 to 4
on the plug for the temperature display there are about 10 or so. but ignore half of them (again they are all numbered)very small but you will see
3 wires is all you need to link the time clock to the temperature display
wire 2 on the time clock goes to wire 2 on the temp display
wire 3 on the time clock goes to wire 3 on the temp display
wire 4 on the time clock goes to wire 5 on the temp display
them 3 steps will give you power to the temp display and it will even dim with the time clock when you turn extrior lights on
the temperature probe that can go anywere you like as long as its outside (but is located in passanger wing mirrors as standard)
the temperature probe connects to wires 6 and 7 on the back of the temperature display .
i will locate my temp probe in the front wheel arch liner. basically inside the front bumper away from wind blast and any heat off the engine
mine was on 5 today when iwas in ince (pie-land) so yours might be reading correctly,