[Marauder]

Is the adapter you used the same as the Matra gmos-04 adapter? Adapts the Onstar and Bose system to the new head unit.

I had the Alpine W200 in my other vehicle and loved it. I assume you will like your 505 as much or more.

I have the new Pioneer Premier F90BT ordered for the H2. Slightly smaller screen but the interface is awesome. I am still worried about using the adapter versus rewiring the truck and using aftermarket amp and speakers. But I will give the Bose system a chance to sound half good.