Best way to plug in audio jack ?

[Jvt]

No answer ?

By the way, what I'd like to do (if it's possible) is to remove all this part in the bottom, and put my 7" screen there instead :


About the audio problem, I found two possible ways to do what I want :

• Using a cassette adapter. Apparently these things work better than what I'd expect. But it means I'd have to keep the cassette player. Maybe I can try to hide it somewhere. At least I can remove the CD player, right ?
• Using this thing. But how does it work ? Can I get rid of all the bottom part of the console if I use this ?

I'll buy the cassette adapter anyway for now, it's cheap. But I hope I can find a better solution.


So, another problem is that I'm going to need power for all these things (computer, screen, ...), and again, I know almost nothing about it. I wouldn't dare to ask you exactly how to wire each thing, but could you please provide me some basic understandable documentation about how to wire things to the car battery ?

Thanks.