'86 190D - Battery not charging

[PKdavidson]

While driving in traffic on Sunday I noticed all of my dash warning lights were flickering at idle. Just tested my alternator and didn't get a jump in voltage after I started the car. Was still around 12.5 volts. I swapped out my voltage regulator about 2000 miles ago so I'm guessing it's alternator time.

Just in case it isn't, is there any sneaky bulb or fuse that could prevent the battery from charging? I ask because this was a trick on my 1980 BMW 528i. If the battery warning bulb was disconnected or burnt out your battery wouldn't charge.

Will go ahead and order the alternator but is there anything else I should look for that would prevent the battery from charging?