Haven't updated in quite a while but I've made some big changes since the start of the year. The first was getting my sound system in. As you can see, I basically had to start from scratch. The wiring was a complete mess and required a complete re-wire. Wiring is something I've never been confident about but I took my time, didn't take any short cuts and had zero issues. The completed system sounds excellent and really helps mitigate the noise of the TDI on the highway. The component speakers put out plenty of sound and the Infinity subwoofer has been excellent, creating a very balanced sound. I really cannot say enough about the subwoofer. Incredibly clean bass, very adjustable, not overpowering (unless you want it to be) and most importantly no rattling. I've also been pleased with my decision to mount the speakers on the roof. They're not too 'in your face' and I believe their location helps you hear better because the sound is not getting interfered with by the engine noise (like it may if they were mounted in the doors or lower dash). I still need to do some touch up on the interior but I am very pleased with the end result.
I've also decided to move my spare tire inside and get it off the door. I generally leave it out running around town and only have it when traveling longer distances. I've removed all the mounting hardware for the door and placed a metal panel in the interior of the door and sealed it up to prevent any water leaks.
I don't have a whole lot of things in the immediate works for the 90 now. I have not made a decision on carpeting and insulation because I may be moving to Florida in the coming months. The majority of trails there are extremely muddy and wet, which leads me to believe the carpet and insulation would get trashed and smell incredibly bad. I only have a few minor plans ahead, replacing some missing bolts in the floor pannels and seat box along with installing set of rear wheel spacers.
Aside from that I am just going to enjoy it and hopefully get off pavement in the near future. I should also mention I just took it on a 800 mile round-trip skiing and it ran like top, absolutely no issues at all. After 6 months of ownership, the 90 has been excellent and I'm very satisfied with my decision to trade for it.