Blaupunkt car audio wiring diagram - My automobile got here with a blaupunkt 520 because the factory healthy head unit. Because it uses the on-steering-wheel controls, i do not really need to switch it out, but i do need to feature the capacity to plug a device into it such as a cellphone. The auto had a cd stacker option, so my unique concept changed into to locate the inputs they might have used and upload a three.5mm jack. Pretty much maximum cd changer alternatives on manufacturing facility radios require virtual communique to permit. Scl and sda usually consult with i2c clock and facts traces. Sdvc is viable voice control, swc is in all likelihood to be the wheel manage. The center 8 pins are the four speaker outputs. Diag is analysis, mrq is in all likelihood to be an interrupt enter? A ground could imply aux or analog ground.
After pulling the head unit out, i found the underneath sticker with the pin outs. Maximum i'm able to discern out - fl, fr and many others are the audio system, ign is main power, 12v batt is the memory, illum is lower back-lighting and earth is obvious. There are a few there i'm looking to figure. That said, the photo of the relationship harness suggests its now not wired for the voice option. Analog or aux floor, tel mute and tel aux don't have any contacts. The radio may also help it however the wiring for it does no longer.