Hi folks, I'm still very new to the fold. My new-to-me C32 Estate is fitted with parking sensors F+R, but it doesn't function. I understand if there is a fault with it that it show red bars. Mine shows nothing at all and is dead as a doornail. I suspect it is either disconnected, or a fuse has gone, but even consulting the wiring diagrams, I can't see where it's plugged in. Any suggestions from anyone? Any good hints to start fault finding? All info appreciated.