Tom,
Here is a picture of the back of the stock cargo light. It just clips into the body hole similar to my 2004.
I have been working diligently to change the inside of the van to meet my needs. The hardest thing so far is finding information. My dealer’s parts department is not too helpful with non-stock items, although they were very helpful ordering the standard headliner for the cargo area. It should be here early next week.
I have the factory-towing package that no one could tell me anything about. On my 04 I had the dealer install an electric brake controller for me and they had to run a wire from the hitch plug to the controller even with the factory-towing package. This time they couldn’t get to it right away, so I started my investigation during my inverter installation to my auxiliary battery.
Long story short is that I found a loose 4-wire plug under the driver seat that has all I need for a controller. During a lunchtime search of the vast information superhighway I found Mercedes part numbers for the mating plug and connectors. I found the parts in stock at a local dealer
, so once I get the controller I ordered it should be plug and play.
Back to my auxiliary battery. The disconnect relay is under the drivers seat so I direct wired my 110volt 750 watt inverter with a 175 amp fusable link that I found at an auto parts store. It fits nicely in the little recess at the back of the seat base facing the cargo area. From the factory the only thing hooked to the auxiliary battery is the accessory plug on the drivers seat base. I would like to hook other plugs and lights in the cargo area to my aux battery using the factory Mercedes fuse block. There are many, many open slots but only plastic holders with no additional metal connectors. The one fused accessory plug is three fuses wide on the voltage input side, but the output side has only the one metal connector to the existing fuse. The other two slots are plastic only. And my question is? Does anyone have a way to determine Mercedes part numbers for these connectors??? Based on the $20 I paid for my brake controller plug Mercedes is pretty proud of their parts but that’s o.k. Hooking to the stock fuse panels would be a really clean way to hook up all my stuff and that is what I would prefer.
Thanks, Frank