Okay, this is my second run at a car computer, my first was in my old Mazda. Here's the car, an '04 Suzuki Aerio SX.
and the dash (Yep, the wife caught me taking it apart already)
It comes factory with a in dash 6 disk changer. No aux input. I plan on using FM Modulation. The radio is not a standard size and I'm very satisfied with the factory sound system, so I'm going to keep it. (Espeically since I want to be able to listen to CDs if the PC crashes).
So here is the diagram. Pretty intense, but simple. You will notice 3 diodes and three ways of supplying 12volts to the Accessory line going to the Opus, this gives me three ways to power on the PC (when the car turns on, when a switch is pressed and when a relay on a RF Remote board closes) The RF Remote allows me to power on my pc from the house! My Opus is set for 20 minutes before shut down.
So the first thing I did was enlist the help of a local welder to make me a metal box that would fit under the passenger's side seat I can put a computer in.
While waiting, Installed both 6 Dbi WiFi Antennas in the windows in the back. I took the antenna mount off leaving me with a single pannel. They work great this way and I think it's a nice mount.
Here is the case back from the welder and with the PC assembled in it. I need to stop by Lowes and get some more screws and I should have it running tommarrow.
I'm also thinking of mounting the SIRIUS and XM Radios inside the box as it seems there is plenty of room.
The sad part is my car is in the body shop for 2 weeks while they put in a new roof (dealer is replacing the roof due to damage, it was part of the deal when I bought the car.)
I should have the PC up and running. The LCD should be in next week sometime, so I'll have it to show. I'm also working on my own CARPC program that will control SIRIUS, XM and play MP3 files with MapMonkey integrated into it. It is below: