I do plan on getting an amp for the sub I will add so this is not an issue.
I think in the end the only small issue will be the powering, what to choose...but I have plenty of time to think about this :)
Thanks for your input!
Or something else could be done as I will need a laptop for school anyway? And may not want to end up paying 2k simply for audio in my car hahaha...thinking about it that's quite a bit of money there just for my car ^^ I'd have to check for some sort of usb connector that I could add to my dash...mmm