I followed an old post my "suginami" to find A-Professional Benz and Beemer, originally in Anaheim, CA. They have moved. I tracked them down in the next town.

All Benz and Beemers
1436 Manzanita
Orange, CA 92867
(714) 776-5249

They have a lot of stuff. Not much R129, which is what I was looking for, but plenty of electonics for all. They are not a junk yard or pick-a-part in the traditional sense. You go in, tell them what you want and they go get it from stock. Their inventory is pretty condensed and stacked. Not to mention disorganized. But if you have a little time and don't mind waiting a bit for that much needed part that MB wants your first born in exchange, give them a try.

I did not buy anything from them. I am not affiliated with them in any way.

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'92 MB 500 SL
'01 BMW 525i Sport
'98 Harley Davidson RoadKing
'74 BMW 3.0 CSi - Gone to a good home