Thanks for the welcome, gents.
I wont be spending a great deal of time here on a regular basis, as life has me busy... but I will certainly stop by every once in a while.
My main reason for signing up was so I could post some more info on the door speaker harness of the Infinity Amplified Speakers.
I was replacing mine, and looked here and many other sites for the answer to which wires where what on the door connector... most places just say bypass the vehicle harness, but to me this seemed needless.
This site had the most/most helpful info, but did not quite complete the picture.
I hope my post now does this for those whom follow.