From reading the clio modding guide, if u already have cable runnig to teh doors there are usually a few unsed cables that u can tap into and run through to the door, if ur going for quanity speaker cable then the best bet woudl be wot i did (as i have a basic model and no electrics in doors), just run the cable through the seal on the caciss and the through the seal on the door, ill post a pic up of how ive done mine.