I had all 4 door cards off, did a window regulator on, ironically enough, front passenger door, fitted 4x vibe speakers in the 6.5" lower positions, and ran new wires from the back of the head unit to each door through the dash, up the pillar, through the door grommit, and in the case of the fronts, an additional set of wires back from the door through the grommits to the A-Pillars for the tweaters.
Started with an iso connection extension loom which I cut up:
Leaving me 4x speaker pairings:
Which I then twisted the pairs of for better signal quality:
Fed the wires through the dash:
Then in to the doors through the pillars and the rubber trunking:
all doors were fitted with sound deadening, and I split and spliced the wires for the two speaker locations:
On the fronts, I also pulled wires back from the doors to the A-pillars for the tweeters;
And while I was in the front left door, I changed the regulator, but the new motor had different connector to the vehicles wiring, so it got soldered:
So yeah - I've had a bit of experience with LR trim clips