Play my mp3 in 2006 Nissan Quest?

I was told the in dash radio unit will not play mp3's. as far as the dvd player, if you have the entertainment system i can't say. I do have two solutions for you.
1) the in dash cd player (mine is a 6 disc cd player) will not play mp3's at 128 bit compression, but for some reason or another I burnt an mp3 disc using the 256 bit compression, still smaller than the standard mp3 comparable cd quality, and unknowingly tried it in the cd player. The nissan quest played it. So it sounds as if the cd player is picky about how low quality of an mp3. 128 is a common reasonable quality. However, I was able to squeeze about 15 tracks on a 256 bit mp3 disc.
2) the in car dvd unit. If your unit is of the standard type, under the seat or mounted elswhere in the car, you could replace it. Dvd players sell for around $125.00+ and will play everything under the sun. reconnecting is not the biggest challenge neither.
& 3) You could purchase an additional hardwired device which allows you to plug in any audio device and play the sound through the Nissans sound system. The device into plugs directly into your wiring loom behind your factory radio. The best part is that the nissan system is already set up to receive this device. It will play through the sat1 or sat2 buttons. I searched and purchased the device online.
i had installed that before learning of the mp3 deal.
well good luck.
Sincerely, Flash