Modern Vespa

Maybe one for the European crowd but any help much appreciated:

I'm rebuilding my 1987 PX200E (EFL/Arcobaleno/Lusso) after getting it back from paint. I've replaced the front drum with a disc brake (old style hub, not Disc star hub), and I'm using a PX Disc headset with Grimeca MC and front brake light switch. The switch was not a feature of the EFL back in the mid-late '80s, but I want to wire it in as a safety upgrade. I'm using the original EFL wiring loom and it appears to have a spare socket in the junction box behind the horn cover, which the PX Disc loom extension for the brake switch plugs straight into, and the colours match up.

The question is: were there region-specific P series back in the '80s which had brake lights wired up to the front brake? Was this already built into the loom, even though not used for UK spec scooters?

In the photo, the socket I'm referring to is the last one to the right ie. closest to the horn and fork.

What colors are the wires that are on the harness side of the connector block (blue and grey)? All those plugs on the switch side are very specific that I've found, so if it fits in a particular spot in the connector block, that's where it belongs.

No idea but if you get a multi meter it's an easy check to see if that blue from the switch has continuity with the blue at the brake light housing.

Hey Whodat, thanks, the wires appear to be the same ones that pop out by the rear brake pedal. I'm convinced that this will 'just work', but now's the time for me to run additional wires down the tunnel if needs be. The forks and headset should be going in this weekend

Thanks MJ. I'll get the meter out if I cannot figure this out. Like I said above, I'm 95% sure that the EFL (pre-Disc) loom is equipped for a front operated brake light, but I guess Piaggio didn't install the requisite loom extension for the UK market