I've run speaker wire into the doors of my current DC2R and my old DA9. It's not easy, but i can be done. And no, the doors do NOT have to be removed on either. No metal is drilled. No rubber is cut. The final product is complete stealth

It's f*&king tricky to pass the cable thru the loom on the drivers side; prob because im right handed, and theres more cables in the right loom due to the power windows/door controller etc.

With the DC2, i removed the side indicator lights and fed the cable down behind the quater panel so there's a little more slack in the loom. It makes the feeding part easier.

Drill thru the square plastic plug with a 6mm bit. I cant explain it without pics, but the whole assembly falls appart and unplugs from the door.

Hopefully someone has some pics of what im talking about.

Goodluck dude.