Hi guys like many of you I'm struggling to get my after market kenwood head unit to work so I would like this thread to answer everyone's questions once and for all ! So the problem I am having is that the head unit has power to eject the cd but not to get the whole thing to work ! I have changed the red and yellow round and still no luck ! I purchased the gp wiring loom with a long 12v red wire which I connected to the cig lighters me again it still won't turn on ! if anyone has any advice the can give me or help if anyone lives in Buckinghamshire that can have a look for me that would be great ! Last resort is halfords so please help haha