I've been searching for the wire diagram for the Metris Van to help me install a Viper 5906V security alarm system. I've been to two professional car alarm installers but found they would not touch the Metris other than just sell me the alarm. I'll need a wire diagram for the Metris to assist with the installation. I've asked my Metris sales person and also their Mercedes Benz Sprinter repair shop if they could install the alarm for me or at least provide me with the wire diagram so I could do it myself. No luck. If any of you Metris owners know where I could obtain the wire diagram I would very much appreciate hearing from you. By the way, I tried to get my Metris cargo van built with more options including the security alarm but was informed my build would take 6 months before it was ready for delivery. I could not wait that long so bought what they had on the lot with the plan to install an alarm myself. I've installed many car alarms in the 80's and 90's when I was operating a locksmith business but cars back then were a lot easier to work with.