So I want to do this SQ door install right . I don't plan on CLD tiling the whole vehicle just the doors and a couple key areas. I have a 2001 jeep Cherokee XJ . I plan on putting these H.A.T. Clarus in the front doors. I made some oak angled speaker rings out of an old chair (1.5" to 1" angle) then wrapped them in deadener. I plan on using damplifier pro to do the outer skin and the door steel facing the inside of the vehicle. This speaker is made for infinite baffle per the Clarus manual (which is worth the read whether or not you have H.A.T. speakers). My questions regarding the IB enclosure: 1. Is it necessary to sound deaden both inside door surfaces or will just the 1 inside, 1 outside combo be sufficient? 2. Will too much deadener inside the IB hurt the speakers sound ? 3. I have seen most guys just pave right over holes in the door with deadener but is there a better way to seal these holes? I was thinking of just patching the holes with appropriate size pieces of deadener then going over the whole surface with a piece of deadener. 4. I wanted to use SS overkill pro (CCF) too but just a 1' X 3' piece behind the woofer running down the inside of the outer door skin at the bottom. Is this an effective use of this product or will I need more? There seems to be a lot of misinformation out there when it comes to sound deadener. How crazy did you get? Thanks in advance.