In my 07 duramax and my 02 half ton i do not have the audio input jack to plug in a iPod or mp3 player of any sort. I have been trying to figure out the best way for me to be able to listen to all the music on my iPhone etc... So there are several ways but for they are not cheap considering all the adapters and shit needed for steering wheel controls etc...Plus if i spend all the money and get my duramax set up for it then that does me no good on my halt ton work truck! So what I'm wondering is if i bought a bluetooth dongle for the OBD II port if i could connect via bluetooth and listen to music that way? Then i could pull the adapter out and switch from vehicle to vehicle with no problems. Im aware you can run monitoring apps like Torque through these bluetooth adapters but can not find any info on whether or not they will allow you to listen to music through them? If anyone has any experience with this or knows the answer please let me know I'm soooooo damn tired of the radio