Alpine/ pure highway ones are pretty good
It really depends on you abilities - ever fitted in car radio before?
If your care has aux in its pretty simple
Obviously you’ll need a dab aerial attached to maybe the windscreen
I replaced the whole unit in my fiesta for one with dab and nav - slightly more complicated but there were a few guides
I presume you car definitely doesn’t have dab- maybe the dab aerial is somewhere hidden - mine was