2011 Ford Escape Subwoofer Installation | New radio required?

I'm transferring vehicles. My previous vehicle was a 2001 and required an aftermarket radio which had low-level outputs which I routed to my subwoofer amplifier. I recently came across a new car for myself; a 2011 Ford Escape Limited. I wish to just move over my subwoofers as a package. Though, if I need a new radio, I don't really find it worth it anymore, seeing as I bought these subs in high school. They were worth the work then, not so much now. If I don't need a new radio, I might as well just move them over.

Do I need to buy a new radio to get these sub up and running in my new car?

Should I put upgrades on my car?

So I recently bought a 2017 Escape S. It's my first new car and with Ford rebates and money down it cost 15k that I'm financing for 2 years. I know financing is dumb but yolo it's my decision. But I'm just thinking should I tint my windows and buy some rims? Or leave it as is? It's black and has 17 inch plastic/ steel wheels and currently a very light tint. Other than appearance I love this cheap car the way it is

Is this a good car for a college student?

I'm 19 and I was looking into getting a newer car next year. My mom drives a lot for her job. She's thinking about getting a new car (same kind she already had just less miles). My current car isn't doing so well. My mom has a 2005 Ford Escape V6 with 260K on it. The body and interior are near mint. Everything works (heat, A/C, windows, radio). It runs and drives as if it were still brand new. We've had it since 60K so I know everything that's happened to it and where it's been. She said when she gets a new car she'd probably give me her old one. I'm going on my second year of college. I know this car has at least another 200K in it. It just keeps on going strong. Would this be a good car for me?

Should I trade in my car?

I have a 2014 Ford Focus. My car is always breaking down and I keep talking it back to the dealer for warranty related repairs. The transmission has been replaced twice. It still doesn't start and I'm practically done with this unreliable car. I almost traded Friday for a 2017 Escape S and with money down it was a affordable deal (ten dollars more than my current payment). I asked if I could wait and of course they said no just come back Monday and they could rework my deal if I wanted it. What would you do? I'm not rich but I feel this is my only way out of my loan with a terrible car. Is the Escape a good car? It has the same features as my Focus so I'm really not loosing anything.

Added (1). I do take care of my car very well. It just hasn't taken care of me at all. I get regularly scheduled oil changes every 5k miles recommended by Ford and every necessary service required by Ford. I only take it to a dealer since I've had it 2 1/2 years (with exception to replacing my tires) and it only has 32 thousand miles.