Full MMI system from Audi A6 4F retrofit to a Seat Toledo

Hello. This is my first post and I'll try to keep it short and simple. I removed the whole 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 ask me to turn ignition on. This is where my problem is. 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 the switch for Terminal 15 changing from off to on but Terminal 15 status is always off. How can I turn on Terminal 15? When I first started I thought terminal 15 was like on my seat, a simple switch behind the barrel but it's sent via canbus to the gateway. I am new to the whole CAN BUS system, I know the basics but I don't own a can analyser. I would love to be able to use the whole system on my seat. I can put pictures if anyone is interested as for now the MMI system is spread on my livingroom's floor. Any help would be greatly appreciated. Thank you

Hi,

terminal 15 "on"/"off" is indicated with specific CAN messages, easy. But I doubt that this is really enough: What about component protection?

Best, Rainer

Hey. I didn't get that far. All I managed to do was separate as best as I could the system from the car's electrical system and figure out how to start it as a stand alone system. I did start it, I can tune radio, use the cd player, surf through the menu. The MOST bus works, and I could connect with VCDS to all the components through the gateway. If all the components came from the same car aren't they going to work with no protection problems? Also I can connect to the instrument cluster, do the output tests but nothing appears on the central display, I think it also needs the ignition to start. If it comes to it, I have access to a dealer VAS to sort out the protection. What would be the best way to activate terminal 15? What hardware do I need? I thought about an arduino board. It would need to activate via a 12v wire that comes from my seat's terminal 15. I would love to learn more about the CAN BUS and I think this project would be a nice place to start.

Ok, my thought was, that the MMI/sound system is tied to something else in the car. If it works standalone, that's just fine.

Check out and combine:
http://www.canhack.de/viewtopic.php?t=2091&highlight=3c0
and CAN_A5.png in
http://www.canhack.de/viewtopic.php?t=1981&highlight=klemme+15

Good luck, feedback is appreciated!

Hello. 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 but not succeeding with the 3C0 ID. After long searches I found that ID 0x2C5 and data 0x03, 0x06, 0x00, 0x17 was the right message. After that I found out 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 reading on the display. I Looked on some self study files from audi and found out that the parking assist needs info about the speed, selected gear, reversing light status, and ignition. I only have messages for ignition but didn't manage to find what messages are for Select Drive, Select Reverse, Speed and Reverse light status. I am hoping that with the messages for Drive and Reverse selected+reverse light status on I will be able to activate front and rear parking readings. If speed will be absolutely necessary I will program the Arduino to read the speed from my Seat and put corresponding can messages on the separate CAN bus from the Audi. I know that the information is almost certainly on this site but I don't speak German so I can't find it. Here are some pictures with the system laid out in my living room.