I would like to say thanks to those that have posted in this thread and others with their problems and fixes to things. It seems that most if not all my questions I would have had, have been answer so this is why this is my first post since joining.
I bought my M4-ATX back in Feb. and just got around to installing it and the rest of the computer last weekend. It booted up first time no problem in the car and has been running nice ever sense.
Thanks for all the helpful past posts.