can't really advise on speakers, as my car doesn't have the active subs, so I don't know how good they are.

I upgraded the front door speakers to some infinity components, and there was a lot of improvement, but my head unit isn't really stretching them enough

- to get the full sound quality from them I'd need to amplify the signal.

In summary then, yes upgrade them, but there's little point spending

£hundreds if you're not after a full on system.

As for removing door cards, I can help.

First, have a look at the bgb-
http://www.mr2-tech.com/bgb.htm
.

in the mechanical section will be something on removing the door fittings.

A couple of things to note

(from experience and posts on here)

don't lever the drivers window control module out of the door with a screwdriver first.

Leave it in the door, and unclip it from behind after the door card is off partially.

This will reduce the chance of you snapping the top clip on this unit and having it rattle around for ever more.

Removing the wing mirror screws can be tricky if the screws stick, as the screws tend to round rather than unscrew.

To get at the tweeter, you only need to undo the front most screw

(of three) though, which saves you having to worry about the other 2.

Drilling out wing mirror screws is not much fun.

This will probably make more sense when you've looked at the BGB.

Stick more queries on here if you get stuck, but a search should come up with a lot of useful info too.

Ian