First of all, this in not to an Astra. Nor a Vauxhall. But i hope you can offer some advice. I havent tried it yet but i'd like to install a dash mounted push button switch for the horn in my Toyota MR2.
With the steering wheel off, there was one wire coming from the column for the horn, and i guess the earth was part of the assembly. Would i be right in thinking that all i would need is a switch on that one wire plus an earth?? Its a factory horn so still has the relay & wiring etc. I just wish to add a dash mounted switch.
Any help is much appreciated guys (im not too clued up on auto electrics)