That model uses the Chuo Denshi CZ-800 ceramic cartridge, so the recommended diamond stylus (needle) replacement is the Pfanstiehl 793-D7M: https://www.amazon.com/dp/B01JJ73DP8
The tonearm was pre-adjusted at the factory so you don't need to adjust it yourself.
And yes, those RCA speaker cables will work, or you can get RCA plug to spring terminal adapters.
An Open Letter to the new vinyl "community"
I'd like to take the opportunity to issue a blanket open letter on some of your favorite topics, going by the hundreds of posts you make on a weekly basis touching on one or more of the following.
"Rate My..."
No. Fuck you.
It's not our job to stroke your internet micro-peen to climax. And you just bought the most Basic Bitch collection of records and gear, which we've seen 20 times this week from needy fuckers Just Like You. And double fuck you because you can't handle it when the response you get is anything other than attaboys and untempered praise for your amazing taste and acumen. You want a participation award? Go bug your mommy. She's that woman on the other side of the basement door. Don't ask for opinions from strangers if you can't handle the possibility that they might not think you're the absolute tits.
"First Setup" / "Joined the Club"
Well, whoopty-fuck.
We don't care. Some of us pretend to. But if we're honest, we don't really give a shit. You're the fifth person today to post a picture of their AT-LP60X and Edifiers. You are Not Special.
And no, you're not In The Club. You've done the barest minimum to even be eligible for The Club. You're a pleb, a provisional candidate at best. Learn some fucking humility. Get the fuck over yourself.
"Recommend me..."
First of all, your grammar sucks. We're not recommending you to something else. You want us to recommend something to you, so it's "Can you recommend X to me". Don't sound like a Philistine.
Second, by starting off like this, we can guarantee that 99.5% of the time you've bothered to do absolutely zero research on your own. We're not Mommy and Daddy who tripped all over themselves to make the payments on the new car you got for your sixteenth birthday, which you wrecked 3 months later. We're not your free fucking audio consultants. We don't sit here with a raging erection just waiting, WAITING for the opportunity to do a half-hour's worth of unpaid work in order to deliver a full detailed proposal to you complete with a bill of materials and comprehensive install instructions. Fucking Google. Use it. Then come back with the shit your weed-addled brain can't manage to figure out.
"Is there any way to improve my ratchet-ass all-in-one/suitcase?"
Yeah - launch that fucker into the sun.
If you got this as a gift, we're sorry. You got a shitty gift from someone who didn't know better. The first free bump to get you hooked that you realize sucks and that you need to spend more money to replace. The best you can do is put on an actual diamond stylus so that you don't fuck up your records using the cheap sapphire ones that come with these players.
If you bought this for yourself, congrats. You bought a toy. A decor object. It is not intended to be a serious piece of audio gear. It's not intended to Work Well. It is not intended to Sound Good. It's intended to inspire nostalgia by wrapping a cheap $4 piece of plastic in a brightly colored or fake wood box to invoke the Good Old Days of the 40s, 50s, and 60s, and then reaping a huge profit margin by selling it to you for $75-150.
Don't. DON'T. Come to us after you've bought said object, when there was ample warning all over the interwebs, and bitch about how it sounds, or how it fucking wobbles and shakes like an unbalanced washing machine, or how it skips more than a drag Dorothy in a pride parade. And don't get Big Mad when informed that you made a bad, uninformed choice of purchase. Vwestlife only has so much cuddle time to give you. I understand his conversation room is booked through spring with all of the Christmas traffic.
In Conclusion...
We're angry, bitter assholes. But we like to share the misery, so we'll generally help your dumb ass out. But we won't give a handy to your ego, nor will we put up with weaponized ignorance or incompetence. Try to figure your shit out at least a little bit first instead of mewling like an infant that needs a diaper change. And for fuck's sake, accept that a lot of the people out there you're interacting with have been doing this shit for a long fucking time, and probably know a thing or two. Eventually, if you hang around enough, you could become one of those bitter but occasionally helpful assholes too. And then you might actually be In The Club.