[par4tom]

Now comes the fun part...speaker alignment!

To begin with, I make my speaker ring-mounts out of 3/4" MDF. You want this mounting surface to be as stable, and firm as possible. Do not use 1/2" mdf or plywood. Use 3/4" MDF and glue the ring-mount to the back-plate with as many supports as possible once you've got your alignment figured out. You can not be too ridgid!

To align my mid bass driver to the blue tape on the drivers side window. I took a piece of scrap wood that was slight larger than the speaker opening, then drilled a hole into the center of it using my drill press to insure a perpendicular angle to the face plate. From there, I took an old graphite golf shaft (Or you can use a wood dowel) or anything that is straight, and hot glue it into the hole you just drilled.

I did not take a picture of this by itself but in the first picture you can see what I am talking about. The white plastic cup behind this speaker is a 2" cap for PVC pipe. This ensures that the back waves from the mid bass driver don't mess up the tweeters job. But that is another discussion for another day...

The second picture shows the tweeter being aligned.

The last picture at the bottom, you can see both alignment aids mocked up on the drivers side and aligned DIRECTLY at the blue tape on the opposite window. In this case, the passenger side window. And I mean directly!!! In that same picture and on the passenger side of the truck, you can see both drivers in place after I had already done the alignment.

Once everything was aiming where it should, I used a bit of hot glue and to lock all the speaker rings down and get ready to stretch fleece and fiberglass.

Be patient during this phase of alignment and construction...it is time consuming and takes some effort (and help) to get it right.

You can find cheap graphite golf shafts for sale on ebay or...get a couple at a yard sale...or hit up Home Depot for some wood dowels too...

I'll post some more on this in the next few days if time allows...