yeah i thought they would either be just squished in there, or they were screwed from the back.
id probably have to go for the squished method on my build, because i will be using the speaker cut outs as mounting points for the door trims to the door, then mount the speakers after the trims are fixed to the door.
where do the leds fit though.. ive thought about this for a while, but still cant work out how he did it...
all comes down to practace i suppose..