There is a list of VAGCOM owners on here somewhere, see if one is in your area, in exchange for some beers you should be sorted. I am obviously having the same issue too but I need to change the plugs first. I noticed that my old seats have another cable like an extension so I think I am just going to butcher them and join the wires together. Still have to get the light turned off later though.
Did you turn the ignition on with them unplugged, if not you may have another issue.