∆ This. In a nutshell. Remove post count and rank, let the content of the post be the deciding factor of the poster's worth.
Edit: I'm neither hardcore nor an MB enthusiast, I just happen to have a few 124s which I'm quite fond of.
For the heater surround, pull both control knobs, firm grip or pliers wrapped in a rag to protect the knobs. You'll see a large nut where each knob was, unscrew them both. Next there should be two self tapping screws on the lower edge of the surround, just above the radio. You might have to...
Unless the cogs are jammed you should be able to push the butler back in manually. If you're lucky it's just overshot the position microswitch and it'll come back to life.
If not, they are primarily activated by one of the door switches. Easy enough to pop out and test with a meter or check...
If you're talking about the red rectangular connector mounted on the passenger footwell kick plate, please do not hook your speakers up to that. It's for the SRS system as per the warning label that should be right next to it.
[YOUTUBE HD][/YOUTUBE HD]
They do (mostly) when they're on foot. Imagine the fights up and down the high streets of this country otherwise. Put them in the safety bubble of their car however and all bets are off.