@Haemmer in case you're still on the lookout for the Tesla 7-pin connector I found this part number on an eBay listing:
I contacted Tesla but their service people do not have this available (yet).
I was able to successfully build a cable using the proper molex connector and associated pins. It took a fair bit of fiddling to get it together, if you are interested I can share more info. It enables all 7 pins and Trailer Mode turns on when connected.
Hi, I am in process of trying to do this. Can you please share more details?