Rear speaker wirering???

[Thomas Gjerulff]

Hi M59 forum.

Im danish so Im sorry about any spelling and grammar mistakes in the following ;-)

Im trying to install rear speakers in my 2005 modutop. I have found the original rear wirering (orange/grey rear left side) where the speaker is supposed to be installed. However the two wires do not continue all the way up til the cars ISO connector behind the radio. 

I have attached a photo of the wires in the back as well as the ISO connectors that do not match up in terms of speaker wirering (there are only wires for the front speakers on the car part of the connection).

All the best

Thomas