My latest project(I wish I could stick to one at a time) is an Iphone dock for my 1999 Chevy Silverado Truck. The factory stereo has an AUX input which was intended for external Cassette tape. Yea, it’s that old.
Features:
1. Charge Iphone
2. Play Audio through factory stereo AUX port
3. Optional video output
3. Mount in a way that does not look awful; but can be seen and used.
The hard part is #2. The factory stereo has an AUX input; but it uses the Delco E&C data bus and won’t work unless you talk it’s language. Information seems to be really limited on how to use it. There are a couple companies that make products which cost $60-$140 and supposedly allow you to connect upto this port. But I thought this is something that would make a great project for an Arduino. I did find this guy doing some work on this as well.
#1 I ordered a USB charger for Iphone for $6. No point in re-inventing that wheel.
Here is the preliminary Schematics, and Eagle Design files. I haven’t built it you; but plan to maybe use either Advanced Circuits ‘Bare-Bones’ PCB or Batch PCB service since there are too many small holes for me to DIY.
Updated! fixed some bugs in layout and went with SMT transistors. aisd gerbers
