Here in Portugal we are under lockdown so opportunity to give the Spider a wash. It is a 1973 1600 Junior. All looks good now BUT horn started working whilst putting car back in the garage.The buttons on the steering wheel do not work now but the horn goes off by itself when manouvering the car. I noticed under the bonnet a wire goes inside the steering column. This wire can be pulled out a fair distance with no resistance. Am I to assume this wire should go inside the steering column and be connected somewhere to the horn push? If so how difficult is it to get inside the steering box to check what is happening inside? Many thanks.