your answers are here:
before i make a start I want to try and plan each step of the way properly just to ensure i havent missed a step and then realise i cant do what i wanted to do!
at present i have an alpine 9812rr head unit with my 2 12" subs plugged into. now if I have a car pc how do i physically link it to my head unit?? i read it has an iso adaptor and/or AI-NET ?? but there are also 3 sets of RCA, front back, sub.. I assume RCA is likely going to be the option, (although im not sure how i would switch sources then for the unit ..) but as ive not seen any pc cards with these i assume there has to be some form of conversion, 3.55mm jack to rca ? but this would only be stereo, i could split each of them so they run stereo on the front and back sets? is there a way to just link them all in proper setup?
the next problem for me is then to buy a touch screen just a difficult decision on where to put it
would appreciated any ideas or suggestions from those who are in the know!