My car has no stereo

Like none at all. The space where you normally find stereo knobs and whatnot is taken up by a reversing camera display. Uh, problem: the only time I ever want to listen to music is while driving so I use my iphone se to play music, but the speakers really aren't good enough. What I was thinking of doing is getting a set of portable speakers to plug into my iphone and play music through those. What do you think?

The road to my garage is about 150 feet long. Backing out of it is a bitch in the morning, it's like >>20 says, only a hair's width either side to not crash into the fence or run over the roses although my road is paved not dirt, but paved with cement not asphalt.