hi, a copy of the wiring diagram would be great can you post it or pm me. i would like to have some manual control over the rad fan, i do a lot of stop start and whilst the fan does cut in and out ok it'll give me peace of mind : ) is it a modulated control of the fan motor ?...all i want to do is turn it on and off... I know that if it is a high torque start motor there may be issues..please advise ? many thanks