I hear you Cluckin big rooster[8D]
Input choices keep changing every year... of course have the am/fm which are great if you have a good local station, cd player ok too. In my trailer I set up xm receiver which is good but actually there are two better choice: mp3 player, but as you alluded to earlier, you may feel that you are making other people listen to your stuff... hey you're not stopping them from poking their ear drums out so technically you're not making them listen to anything.. and option B use your cell phone with the free Pandora app - I like this, pick a song you like and choose to play 'similiar or like' songs and you're all set but I find it can be even more monotonous than an mp3 because it sticks to that style pretty rigidly....
By the way here's a great song that I make people listen to when I'm flying:
<span id="yui_3_3_0_1_1303966323515183" class="url">
www.youtube.com/watch?v=5V2J8qehe80</span>
Keep up the inspiring work.