Dans Car-Pi Diem Project (2010 Chevy Cobalt)
(Diagram and flowchart at the bottom.)
Currently a Pi-2 but thinking about using a Pi A+ and just rely on a single external usb SSD HD and a powered usb hub, as really, there’s no network while your driving!
DAC - http://iqaudio.com/?page_id=454 (but will probably buy that for my home use due to the built in Headphone amp, and use my existing HiFiBerry DAC+ for the car.)
Screen – A debate. Will need to determine if a 5” or 7” touchscreen will be used first. Hardware options will make this choice for me eventually. Several amazon wish-list items have been flagged already for either use case. Using HDMI was a pre-req as the DAC will be using the GPIO pins that other non-HDMI options would rely on.
Physical EQ selected instead of an audio processor. First being it has a physical volume control knob, as I don’t want to have to rely on the touchscreen to change the volume in traffic. Not to mention the EQ has the possibility for flashy led’s and who doesn’t like those!!! But also, it’s a simple 4 speaker setup that uses 4 of the same drivers, so custom rolloff points and different crossovers for front/rear aren’t really needed.
Optional / Questionable:
Vacuum Tube Preamp to add that warmth right out of the dac? Would road travel (granted mostly stop-n-go) be too hard on a tube?
RCA Distribution Amp? Would it be required over just using some split / piggyback RCA cables? (Do they even make one that uses 12v DC?) Also I worry about added noise being they’re powered. SOLVED! The EQ output’s 7v across all three pairs, that should do me fine!
Any idea’s on how to add an “aux” input for my phone? - SOLVED! I listen to a lot of audiobooks during my commute, and this is kind of a deal breaker to not have. I’d rather not have an RCA switch box if it can be avoided. They’re all horribly ugly, and as often as it would be used it would need to be easily accessible so would probably be on display in the dash which I don’t really want.
Focal 6 1/2” 2 ways front and rear.
T-Line Sub Enclosure / Amp Rack (replacing an existing sealed box setup currently in use.)