Quote: Originally Posted by
doni49 
I had originally planned to use a spare tower PC that I have. But I'm considering going all in and picking up a new system designed for this. Will anything else be needed? Are these all compatible?
They are all compatible.
A few things that I see that you'll need:
- Installation stuff, namely power cabling. That's not too big a deal and can be purchased locally with ease. don't forget to fuse your power lines.
- A means of interfacing with your audio system in the vehicle. You made no mention of your audio system plans, so we can't offer up any suggestions for that.
Quote: Originally Posted by
MaliceNine 
That beginner package you listed comes with an M1-ATX, so maybe you wont need the M2? I dont know what your plans are though.
Actually, it comes with an M2ATX.
Since it comes in the PC package, there is certainly no need to purchase a second one.