Should I plug this together?
 

http://www.southeastscoobies.co.uk/v...1&d=1368128719

This is under the trim on the drivers side. The passenger side has the same, but is plugged together? Any ideas what it is?

for an option your car didn't come with? heated seats or something like that?

Ejector seats! :)

If nothing is broken.. then I would leave.