Audi MMI Retrofit: Install in Seat Toledo

Hello. This is my first post and I'll try to keep it short and simple. I removed the entire MMI system from an Audi A6 4F. I have the Bose sound system with speakers, navigation, Bluetooth telephone, parking sensors, LCD display, control unit, instrument cluster, gateway, and so on. I managed to start the audio system, but all the other functions require me to turn the ignition on. This is where my problem lies. I no longer have the key, so I opened up the ignition barrel and manually pressed the switches: key in, steering unlock, and ACC. I can see in VCDS that the switch for Terminal 15 changes from off to on, but the Terminal 15 status always remains off. How can I turn on Terminal 15? When I first started, I thought Terminal 15 was like a simple switch behind the barrel, but it's sent via CAN bus to the gateway. I am new to the entire CAN BUS system; I know the basics, but I don't own a CAN analyzer. I would love to be able to use the entire system in my car. I can provide pictures if anyone is interested, as for now, the MMI system is spread out on the floor of my living room. Any help would be greatly appreciated. Thank you.

Hi,

Terminal 15 "on"/"off" status is indicated using specific CAN messages, which is straightforward. However, I doubt that's sufficient on its own: what about component protection?

Best, Rainer.

Hey. I didn't get that far. All I managed to do was separate the system as best as I could from the car's electrical system and figure out how to start it as a standalone system. I did start it; I can tune the radio, use the CD player, and navigate through the menu. The MOST bus works, and I was able to connect with VCDS to all the components through the gateway. If all the components came from the same car, won't they work without any protection issues? Also, I can connect to the instrument cluster and run the output tests, but nothing appears on the central display; I think it also needs ignition to start. If necessary, I have access to a dealer VAS tool to bypass any security measures. What would be the best way to activate terminal 15? What hardware do I need? I was thinking about using an Arduino board. It would need to activate via a 12V wire that comes from my seat's terminal 15. I'd love to learn more about the CAN bus, and I think this project would be a great place to start.

Okay, my thought was that the MMI/sound system is linked to something else in the car. If it works independently, that's perfectly fine.

Please provide the text you would like me to translate from German to English. I will then give you only the translation, without any explanations.
http://www.canhack.de/en/viewtopic.php?t=2091&highlight=3c0
and CAN_A5.png in the directory.
http://www.canhack.de/en/viewtopic.php?t=1981&highlight=klemme+15

Sure, here's the translation:

"Good luck, feedback is appreciated!"

Hello. It's been a long time since my last post, but I finally got my Arduinos and MCP2515 to try and emulate ignition. Last night, I managed to do it, after trying unsuccessfully with the 3C0 ID. After extensive searches, I found that ID 0x2C5 and data 0x03, 0x06, 0x00, 0x17 was the correct message. Afterwards, I discovered by a lucky mistake while looking for something else that you need ID 0x6A5 with 0xCA, 0x88, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00 sent at the exact time I press the button for parking assist to get the image with the car to appear on the display. The sensors are chirping, but nothing is being read on the display. I looked at some self-study files from Audi and found out that the parking assist needs information about the speed, selected gear, reversing light status, and ignition. I only have messages for ignition, but I haven't been able to find what messages are used for Select Drive, Select Reverse, Speed, and Reverse light status. I am hoping that with the messages for Drive and Reverse selected, plus the reverse light status enabled, I will be able to activate the front and rear parking readings. If speed is absolutely necessary, I will program the Arduino to read the speed from my Seat and send corresponding CAN messages on a separate CAN bus from the Audi. I know that this information is almost certainly available on this site, but I don't speak German, so I can't find it. Here are some pictures of the system laid out in my living room.