Don't see why not i assume it is just going from the switch in the handbrake lever to the clockset/fuse? But then again it could go to the bcm/pcm round the back of the van and up the roof
What are the odds there's an led on the Speedo?(probably)
If ya really really want to know tell me and I'll route it on my spare loom and find out for you but 1 thing is for sure i doubt many ppl will remove the drivers seat, lift up the carpet, undo the channelling open the fusebox, partly dismantle the dashboard, remove the clockset and plumb the new wiring in! That's just insane when you only have to look or feel down at the handbrake......... And breathe loot.