More diagrams attached. Please note there are PDFs attached to the original post for more detailed wiring diagrams.
I printed all of them and spent night looking at them and building the whole thing in my mind, until the light bulb went off and started testing and everything worked :-)
The C315...
I hate to disappoint you but the wiring for memory seats is different than non memory seats. There is a memory module that sits under the driver seat, check if you have it? If yes, then you can probably just run the wiring between the different modules. I attached the high-level power diagrams...
If you already upgraded to 8", do you have the bezel with h/c buttons or the recaro (non h/c) bezel? Either way, you can use the screen buttons. Like ctandc72 said, you can add the seat buttons to your screen by forscan. Thats what I did. The only thing you need from behind the bezel is the MS...
So you already have premium seats (cooled/heated?) but they don't have memory? I think it is doable. I enabled heated/cooled seats in my car after swapping base to premium seats. Wasn't interested in memory though (also to keep it simple), but it was totally doable.
Generally, every module in...
Disclaimer: The below assumes some knowledge of wiring/assembly/safety/etc. It is written to the best of my knowledge and what worked for me. I am not responsible for any damage caused by following the steps below or any consequences. That's said, I have done the below on my cars and it worked...
Have you made progress here? I was able to make heated/cooled works, it is simple, I will post a thread for it. But had the driver seat not moving issue. The diagram you posted here are very useful for me. Sounds like the driver seat powering comes from the driver seat module (attached to driver...
I will, once I figure out the airbag light for passenger seat, and make the driver seat movable...
I did find other sources for MS CAN +/- at the seat connector, just need to test them and connect them. This will save me from running a long lines from the FCIM or APIM connectors.
I am getting a...
i like what you did, using the extra hot line to feed power. I used the same idea to enable heated/cooled when I swapped my base seats to premium leather. All what the H/C module needs is power (+/-) and MS CAN (+/-) to tell it to power on, etc when you hit the buttons. (yes, I swapped my 4.2"...
Hey Joe, appreciate all your help. Can you please look up mine too? Just purchased yesterday and curious about everything... VIN 1FA6P8CF8G5250786
Thank you in advance.