I need to fit a rear light panel to a cycle carrier. I am just trying to figure out how to wire this up. Does anyone know if a Peugeot expert tepee (2011) would have a pre-installed trailer socket? Or would I need to fit one? Where would I find either the socket or the cables running to the existing rear lights? Our van has been converted to a campervan so has lots of extra panels so I want to get an idea of where to look before dismantling it. Many thanks for any help! I've been googling furiously but am struggling to find answers.