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Hello!
This page is about 'how to' build own mp3 player and connect it to the Toyota car audio system.
All informations on this page are grab form different places in internet (with or with-out authors permission) and collected myself in 3 months of avc-lan experimence.
concept

1. The main audio unit

w5830058816
 
back

PIN DESCRIPTION:

nodesc.dir
1+12Vout
2mutein
3S.GNDout/in
4L+in
5R+in
6+12V ACCout
7TXTin
8TX+in/out
9TX-in/out
10GNDout/in
11L-in
12R-in
Where is AUX input ?
Answer: There is not ANY regular aux input.
The Toyota uses digital network for communication between audio/video devices.
This magic network is call AVC-LAN (Audio Video Communication - Local Area Network).
The only one place is where we can put external audio signal to HU (head unit) - this is CD changer connector.
Because HU disable audio input by default, we need to send information to AVC network that CD changer is connected and ready to transmit audio signal.
 
Pins 8 and 9 are TX+/TX- AVCLan line input-output.
 
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