right guys, ive done the 18 button retrofit.. i even went and bought a genuine e36 outside temp sensor.
all wired in the obc works great but its really cold clearly at -35F outside
so.. the sensor doesnt work, tried it on my mates e36 and it stil doesnt read. oh well.. now, i was wondering.
the e36 sensor's are few and far between, could i hust get an outside temp sensor from any other car and just wire it up? also just for my sanity, the sensor needs the 1 wire (brown and grey IIRC) from the obc then just ground on the brown wire?