Installing 6.5's in the front of a 4 door
 

I'm installing (trying) 6.5's in my front doors. This is a 4 door car, not sure if this makes a diff but if it does I'm sure it's for the worse.

I bought the plastic adaptors from ebay ... probably not worth it. The Eclipse 6.5's I want to mount are actually 6-1/4 (WTF?). So I had to cut a ring out of 3/4" mdf anyways.

Still, I needed the 1/4" thick base plate from the plastice e-bayer's (not a total loss). My Eclipse speakers are not overly deep, about 2-1/8". As seen in the first picture you have about 1" depth in the door between the window track and the sheet metal. The adaptor gives me another inch. So, these speakers SHOULD fit.

However the door panel is hitting them and that's not good. Noting that the speaker, when mounted, sticks out 3/16's beyond the mounting plate. One option is to use the marginal 6.5's I have for the rear (the silver speaker in the picture) with shallow spacers or (which I'm doign tomorrow) start cutting out some of the overlapping plastic on the back side of the door panel. One of the pictures below shows that there is only about 1" clearence at the tightest point.

I think I should be able to find the clearence I need.

i just put 6.5s in my front doors. to get the door to fit back on, i had to tear out the metal clip thats in the corner, as well as the little blue plastic tower it was attached to. (it was suppose to hold one of those little green xmas tree looking clips, but i have since broken nearly all of those, so it didn't serve a purpose anyway)

mine are right up tight against the window track, which i'm not fond of, but it doesn't seem to cause a problem at all.

as for the backs, i have no idea. i only have a 2 door.

Ok, I gotta ask.

You said Eclipse 6.5" speakers. it says RCA right on the cone? Or am I reading this wrong?

I say that I have the option of the low profile, not so great Speakers shown below, ie the RCA's

No pic of the Eclipse