@Jackdaw,
My boat has never had an audio system installed. I figured it was much easier to go Blue Tooth wireless than to:
- Figure out where to put the stereo head unit.
- Cut out an opening and mount a stereo head unit
- Figure out how to run power to the unit
- Figure out where to mount an FM antenna
- Figure out how to wire FM antenna to head unit
- Decide on locations for speakers
- Cut out and mount speakers
- Figure out how to wire speakers back to head unit.
- Then finally find time and money to do all of this cutting and wiring.
I already had the blue tooth speaker. I threw it on the boat, and had tunes from day 1. I listen to SiriusXM-online, Pandora, & Spotify in our regular cruising area. If we were to go out of range of cell towers. I can plug in my Zune or a guest's Ipod, and still have tons of tunes. Once I retire one of my laptops to be a boat computer, I could take my MP3 collection aboard on a portable drive, and would have almost a terabyte of music to choose from.
I am not saying a built in audio system wouldn't sound better, but this system works, and was cheap and easy. And with a twinned/dual speaker system like what
@BlowMeAway has, and the one I linked, the stereo separation is as good as your speaker placement. So as to not forget or lose it, I just leave my current single speaker on the charger on the boat when not in use.