How do I put a speaker system in a go kart? Like a small one with an aux I can plug my phone in.?

Velcro a portable bluetooth speaker into the cart. Remember, they are not all made the same, so what works for one may not work for yours.

The System of Open Book Examination where the student will give enough time to find the answer from the text book and write the examination is needed the next thing is the lack in the developement of the selfconfidence in the students by the current curriculum. Actualy the current system of education mainly the evaluation system what we follow require the student to write the exact answer what the book contains and the question paper is also the same as for the previous years only when they changed the syllabus then only the students feel the heat. The method of evaluation must be completely changed not to see what was given in the book was in the answer sheet. But the evaluator must see that the student whether knows about it. But the evaluation now what they follow is that based on the no of pages the student written this was followed by some people in evaluation this must be changed inorder to write more paper the student need to mugup the subject in the book. As the bookish student get more marks the knowledgable student loose the opportunities this led to the problem in the growth of a person if a person need to be an goldmedalist then the person must be a bookish person or else they cannot. Being a Gold Medalist if a person is Unable to find the job for them this will lead to a lot of mental pressure on that person even if the person was under employed because of the knowledge deficiency that will also create a mental pressure on a person because of facing the person who was below them in the studies and above them in the stratus of the society. It is simply the mental pressure on a person was created by the current system of education & Evaluation. If any evaluator oppose my words then U Can simply check it secretly while they evaluate. The evaluator never spends time in reading the answer paper fully and the main reason is that the evaluator never knows about the subject fully also the teachers who teach also not the effective person who was worked as teachers in the school in the 1950s and 1960s are not like that, that also play a major problem in our educatio systed we have M,Eds & M,Phils a lot in our teaching industry but most of them are waste and are not like the teachers who worked in the industry in 1950s and 1960s.

Define go-cart. I think of a kid's toy with a small lawnmower pull-start type engine.

If that's the case you probably don't have a battery so effectively there's no electrical system to tap into.

If that's the case you'd have to start with a battery system capable of generating the power you'll need and that alone could be something of a "project".