Hi I have decide to upgrade the speakers in my peugeot 306 estate. I already have a Kenwood M4524G head unit in the car and i have just fitted a new pair of JBL 5x7 2 way speakers in place of the rear speakers in the tailgate powered by a JBL Decade amp that i bought from a mate. I now want to upgrade the front speakers. I have some JBL components out of my previous car and i am looking to power these with another amp. The original speaker wires run through a rubber thingy (sorry i can't remember what its called) between the car and the doors but on the end of rubber thingy there is a plug that screws into the door with wires for the windows and door locks. What is the best way to run new speaker wires between the car and the doors?