Props on a successful audio project. Although it's not TIF2's, it's definitely noteworthy, especially with the color-matched saddlebag speaker lids HD now offers, and the HT 70.2 amp to drive the HD 2 ohm speakers.
As for the huge amount of new wiring inside the fairing, it's unfortunate that HD only offers the non-Ultra Overlay Harness, 70169-06, for those using the XM module. That's a huge harness and unless you're adding CB/Intercom, most of the harness is just excess--and there's a lot of it. HD offers a much better harness for adding the iPod or NIM modules, p/n 6920033; and, if all you're adding are the rear speakers, there's a Radio Harness used in lieu of the NUOH. Both of these other harnesses are take up much less space, and are much less costly. For those willing to a bit of research, it would be worth considering using the smaller harnesses, and supplying the needed connector to the XM module and wires to the 35 wire connector they use rather than deal with the sheer mass of the NUOH.
Sharp looking project you've completed, HDNIK--many miles of smiles with your tunes.
Carl