i believe you should be fine connecting the screen to the power supply-- just make sure to connect to the 12v wires, and not the 5v wires!
for wiring, it is typically recommended to run a new wire from the battery to prevent problems later.. many times, the fuse for the cigarette lighter actually powers more then just the cigarette lighter-- so the the fuse rating at the cig lighter is lowered..
when you run your own wire for any devices, you control the fuse rating, the wire size, and what is connected to the line-- virtually all aspects that make the factory wiring undesirable for use.
and troubleshooting becomes that much easier--because you know what that wire powers, where the fuse is, and how large the wire is, you can know exactly where to start troubleshooting, should anything go wrong..
and if you haven't seen it, 2k1toasters beautiful cigarette lighter artwork on could happen if you use the cigarette lighter:
ahh ok.. yeah i was going to run a new power cable for the AMP of course.. and probably for the actual PC as well..(so 2 new power cables)
So i'll do that and run the LCD off the PSU as described here:
Nice, I like what you've done so far.
I think I may go a different direction. I'm going to attempt to tap into the audio signals from the CD changer in the boot. I want to keep my stereo intact as I have grown attached to it. :D However I think I'll wait and see how your dash turns out, if it looks super fantastic nice awesome I may just need to go for it.
Well looking at it today, i don't think i'll have enough room behind the LCD to mount the PC in there as well... too many wires etc at the back.
I don't think i want to mount it in the boot as the vga cable won't reach and i don't want to risk using an extender due to signal degradation etc
So now i'm thinking i might have to get some sort of mini box and mount the PC, psu and HDD in the glovebox or something, though there won't be much airflow in there, so i'm not sure about that either..
Or maybe under the passenger seat maybe...
From others experience, what would be the best/easiest box to mount those things into?
Wondering if something like this would do the job ok..?? ideas?
Remove the built in DC-DC converter and hopefully install the M2-ATX psu...
that are more then a couple installs that mount the pc in the rear of the car-- you really just need to make sure that you use a high quality vga cable, and you won't have too many problems..
under-seat mounting is sometimes a tough location to utilize.. my car is more of a 2 seater with padded rear storage, though many consider it a 4 seater(there are seats, and safety belts, but only small children fit comfortably)..
because of my little-used rear seats, i mounted all the components on a sheet of plexiglass under the passenger seat, but still had some clearance issues that required a hammer to get get the bottom of the seat to clear the low profile pc heatsink...
if you use the underseat location, be sure to check that the seat has enough clearance, you have enough space between the seat rails, and, if you plan to have any rear-seat passengers, that the pc can be tucked away/sealed enough that the passengers getting in/out won't mess up your wiring..
Can you mount the board in the dash on angle to create some space or even sideways?
My dash has a bit of space either side of the double din setup so I could run things out there..
But I saw another build that put the motherboard on quite a steep angle which would also create more space for cables :)
Soundman98: that's why i'm thinking of putting it in a box and maybe screwing/glueing/velcroing to the carpet under the front seat. No one ever sits in the rear seats in my car, they are the same as yours i guess.. but maybe a little more room in mine..
stretch4x4: my issue is the depth, not the width.
Yep so if it is not deep enough (My din space is about 180mmx180mm and the board I want to use is about 170mmx170mm)
Do something like this and lift the back up:
By raising it you give yourself extra space for cables at the back.
For example if you raise it 90mm I have 110mm or so to work with the depth of the board is now only 145mm if my trig is correct.
Alternatively put it up on an angle like that and then have the cables come out to the side if you have more room. Then you can still mount drives and power supplies above and below it :)
But feel free to go under the seat, that is just not an option for me as I have a four wheel drive and I am sure that one day my computer will get wet if I keep it there!
yeah real 4x4's have a little different mounting requirements...
just be sure to measure a lot before ordering parts to mount below the seat-- i originally though it had about 3" below the seat-- the back sloped down though, so i ended up with a max height of about 1-1/2"....