Heyeric

I have an '06 MDX, and would really like to find a good solution for connecting external sources for audio. I put in an iSimple setup a few years ago, but the results have been mixed. I may have just gotten a "bad" one (off eBay), but the connectivity is sketchy sometimes, and it has never really worked as well as it should. I would love to get some sort of Bluetooth audio connection, but if I can't do that (without replacing the head unit) I would be perfectly content to have a reliable physical connection. Is there a new/better iSimple solution, or is there an alternative that exists that anyone has been using? I don't really want to replace the head unit, but if push comes to shove, I can/will.

Thanks!