I just ordered a Clarion NX500 for my truck and i'm just trying to get my ducks in a row for when it gets here. I ordered the adapter (http://www.crutchfield.com/p_120GMOS04/GM-Factory-Integration-Adapter.html?tp=3486&id=detailed_info) that Crutchfield prompted me to buy online to work with my Bose setup. I'm wondering both has anyone ever used this adapter and i'm sure somebody knows how to bypass the need for the vehicle to be in park to have a DVD playing. Thanks for any info in advance. -Garrett