Member, Sport: Off DSC: On (>50 posts)
Join Date: Jul 2013
Location: SF, CA
Thanked 10 Times in 10 Posts
For me, pre-wired means I have that little round plastic button in the trunk. The pics from the OP helped that I have the brown/white, thicker black, and white wires for the OEM mic. I doubt I have an ULF - but unsure really what that is, so I'm assuming I don't. Sorry my car didn't come with the owners manuals or spec sheet.
Will look into the speed sensitive volume adjustments, I wasn't even aware this was a thing.