It sounds like you need money now and not two or three years from now (which is where you'd start to see your pay off from an internet idea).
Since you are adamant about keeping the car, get a second job for the weekends. And I'd consider selling the audio system and reinstalling the original to help pay your credit card bill. That should be your first priority.
And over the summer get a good full time job and save all the money. When I went to college, I worked 60+ hours a week so I only had to work 20 hours during school.
Line up some work for spring break.
Since you are adamant about keeping the car, get a second job for the weekends. And I'd consider selling the audio system and reinstalling the original to help pay your credit card bill. That should be your first priority.
And over the summer get a good full time job and save all the money. When I went to college, I worked 60+ hours a week so I only had to work 20 hours during school.
Line up some work for spring break.