I have an 04 cav, and am having power windows installed.  The SPAL kit I bought doesn't have the right size cap to fit in the hole where the window cranks used to be.  Where can I get the right size cap?  Do I just have to custom fab something up?
 
 
You're supposed to use a tool to cut a hole in the door panel the right diameter, and then use the right size cap for however far the splines stick out.. 
Its called a door panel cutter.  
 
It sanwiches the panel, and then tightening the bolt pulls the cutter right through---perfect size for the plastic caps to pop in. 
 
 
^^brandon how would you put a tweeter in that spot? do you have any pics
 
also would tweeters sounds good in that location.,