Aux to cassette adapter?

I know it sounds weird, but, I just recently bought a 2007 Honda Civic that has an aux adapter. I used to drive a 95 Explorer that had a cassette tape player, and I used to use a cassette to aux adapter and play music from my phone into it. But, I did use to play some old AC/DC and Lynyrd Skynyrd cassette tapes in my car. I was wanting to know, is there a way I could find an aux to cassette adapter or something like that? I know that's one heck of a long shot, but, I'm just curious. This ain't really a huge kick in the nuts to me as I can just download the albums online and play them through my phone into the aux. But, there's a special feeling you just get with using a cassette tape ya know?

I drive a 2013 Honda civic is making humming/winding noise?

Noise occurs upon acceleration and deceleration. The pitch coincided with the speed of the car. Not necessarily the throttle. Car seems to shift just fine. Slight vibration in the pedals. No jumping or sputtering. It does however seem to come from the front of the car. Any thoughts?

Can a novice change spark plugs or too risky?

I have a newer Honda Civic with 70,000 miles so probably need to replace them soon. Dealer wants $150 which seems kinda high. So can a novice who has only changed oil try it (after watching it on Youtube) or is it too risky since engine could seize and cost thousands?

Can I ask a car dealership to exchange the brand-new car I got today, but had to return it because of faulty electronics?

I bought a brand new Honda Civic for my daughter, she went to the dealer today to get it. After driving for less than two hours she had to go back to the dealer. The car had electronics issues. Her speedometer was going from 35mph to 0 and so on. They said to leave the car and that they will try to have it fixed by this coming Monday. Legally what are my options? Can I ask them to exchange my car for another? Am I stuck with the car that I had to bring back to the dealer less than two hours after I got it?