Hi
We bought a vehicle sometime ago which has a headunit however we did not buy the nav unit for cost reasons and now it is too late as they don't supply them any more. However I presume the interface between head and nav units are reasonably standard and I do have a pin out so I was wondering if some may know what the interface functions are (I have made some suggestions as to what I think they are but please feel free to add or modify):
1: SDIN L __________SD car reader audio L channel ?
2: SDIN R __________SD car reader audio L channel ?
3: Nav Audio _______Audio signal from NAV or Audio Trigger from Nav
4: Nav Trigger _____Interrupt audio/video from other sources to show Nav
5: R _______________Red nav video signal
6: G _______________Green nav video signal (vid sync must be on here)
7: GND-A ___________audio ground
8: GND-V ___________video ground
9: B _______________Blue video signal
10: GND-D __________normal ground
11: SDIN TX ________control signal for nav buttons etc OR SD card reader control
12: Nav video ______either a composite video signal OR nav video trigger
13: SDIN RX ________control signal for nav buttons etc OR SD card reader control
Does anyone have any better ideas or experience with these interfaces??
We bought a vehicle sometime ago which has a headunit however we did not buy the nav unit for cost reasons and now it is too late as they don't supply them any more. However I presume the interface between head and nav units are reasonably standard and I do have a pin out so I was wondering if some may know what the interface functions are (I have made some suggestions as to what I think they are but please feel free to add or modify):
1: SDIN L __________SD car reader audio L channel ?
2: SDIN R __________SD car reader audio L channel ?
3: Nav Audio _______Audio signal from NAV or Audio Trigger from Nav
4: Nav Trigger _____Interrupt audio/video from other sources to show Nav
5: R _______________Red nav video signal
6: G _______________Green nav video signal (vid sync must be on here)
7: GND-A ___________audio ground
8: GND-V ___________video ground
9: B _______________Blue video signal
10: GND-D __________normal ground
11: SDIN TX ________control signal for nav buttons etc OR SD card reader control
12: Nav video ______either a composite video signal OR nav video trigger
13: SDIN RX ________control signal for nav buttons etc OR SD card reader control
Does anyone have any better ideas or experience with these interfaces??