I'm running 60% overs. Decided on them mostly because of my elevation. No numbers yet. Just got the truck running again a couple weeks ago. Going to try and make it to a dyno here in the next month or so.
Try unhooking the batteries for 15 min and try again. Not sure if it will fix your problem but I've had a no com error on my LLY's after trying to flash with the ABS relay still in.
Damn Ne-max beat me to it.
I'm pretty sure your aftermarket pillar goes over the top of your factory. Last time I checked they didn't make a full replacement pillar for the speaker for 03-07 classic. They do make one for 07.5+