Well believe it or not my planned installed went according to plan to the T!
Red Wire (12v constant): 30 Post under dash
Green Wire (ignition): Blue black wire on VAG connector
E-brake wire: Just grounded it for now. May hook to e-brake later
Alarm fix: I tapped the wire for fuse 6 (central locking) and removed the 5 amp fuse from the box. I put an inline 5 amp fuse between there and the 75x post next to the 30.
That's all folks. Works perfect, TT works, alarm works. No soldering or clipping of existing wires! Just used wiretaps. Only had to remove the knee kick panel to install.
As far as the boost guage is concerned. I tapped the FPR line. Boost guage seemed to work fine. However, the highest peak boost i saw was .67 bar. Does that seem right. For the most part it would hover just under .6 bar when i was under full acceleration. This is obviously with the stock ECU. does that seem right?
I will be trying to reverse the back lighting later this week so that its usually red backlight. and green for overboost and TT.
Temporary install location
(edit: I ended up tapping the FPR line instead of the BPV line. I updated these directions to reflect that.)