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Got a black maxx in on my buddies duramax. My cable sticks awesome and zero connection issues Sent from my SM-N920V using Tapatalk

Cable works good. His end that plugs into black maxx is alot looser than my cable end. Does what it is suppose to do though. Sent from my SM-N920V using Tapatalk

I'll hook you up way cheaper than that brotha.

It will be alot easier to get the pin layout this way. Cables should only be about 50. But you know some people are greedy. Sent from my SM-N920V using Tapatalk

I popped on one so I can take the easy way out. :)

http://www.ebay.com/itm/H-S-Black-Maxx-or-Bully-Dog-PMT-Tuner-Power-Cable-/262712561851?hash=item3d2ae390bb:g:jFoAAOSwal5YI4tV&vxp=mtr Yikes, kinda spendy. Same idea I had.

Just an update. I have the power and ground figured out. I don't have the other accessories like pyro and such so won't be able to map those out, but should have the can bus high and low figured out this week if work doesn't get in the way. Sent from my SM-N920V using Tapatalk

4 screws on back and carefully peel top and bottom cover off. Careful it is very thin metal. Held on by 2 sided tape Sent from my SM-N920V using Tapatalk

Got the positive and ground wires pinned out. Now should just need the can-bus wires and we should be in business.

Well, made some progress today. Plug turns out to be a variant of the dfp20 male plug. Just trimmed the outer shell off and she fit tight into the unit. Just have to wire the convert over to hdmi now. Sent from my SM-N920V using Tapatalk

Well, got my dfp cables today and it wasn't that connector either. I was sure it was that. Must be a proprietary plug. I would have never guessed that. Alex

I for the life of me can't figure out why they used so many wires. Only 4 wires are used in the obd2 port. Can't make it too easy I guess. :) Alex

Dang, nice find. That should help a lot. Thanks, Alex

I believe the connector for the bottom port is a dfp20. I got a cable ordered to try that connector. If that doesn't work I'll just solder on 4 wires to the board and go from there. If anyone has a used cradle in not working condition it would be very helpful even just to borrow. Sent from my...

So, I tried to wire straight from the mini-usb to hdmi. That didn't work and got a communication error. My guess is because it is looking for communication through the bottom port. I'll continue my trial and error till I get it sorted out.

Guess we will take that as a no. I'm shocked there is no one that has put up this information on any of the forums I've seen. I'm on a hunt for the same thing but when I find out the pin layout I'll definitely post the info up.