Lol
Yeah u need
to earth it if u fit a cmax
steering wheel. As I found out after putting it back together because without the earth horn works without ignition switch on. Turn on ignition... No horn.
Earth the brown wire
to steering wheel and then horn works as it should.
Also just
to let people know that if u have cruise control then cmax with cruise control works in transit.
Cheers for ur help rumble.
To me ur almost worth ur weight in bronze