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Message: <blockquote data-quote="jfmorris" data-source="post: 29490" data-attributes="member: 13408">I think my 2003 Yukon had something like what you are describing, with rear seat audio controls that were built into the back of the console between the front seats, along with headset jacks in the back 2 rows of seating. If anyone knows how to integrate with that (or not), it will likely be the team at Crutchfield. I've trusted them with a lot of my car audio purchases since the 1980's.Something to be aware of is what I talk about in another thread here, and I'll be honest, this seems to be a niche that even the Crutchfield team was not aware of:[URL unfurl="true"]https://www.gmt800.com/threads/gmt800-radio-reception-issues-with-aftermarket-radios-solution.9296/post-25368[/URL]Basically, the 2003-2006 at the very least has an antenna amplifier built into the base of the antenna, and the factory head unit sends 12Vdc up the center conductor of the antenna wire. No after market unit does. I listen to a lot of radio, including talk radio, when driving around in my truck, and with a nice Sony head unit, I had nothing but a buzzing sound across the entire AM band, and was only picking up about half as many FM stations as with the factory AM/FM unit in my 2006 Silverado work truck.  The solution I cobbled together, after a lot of research, resolved that issue, and brought back all FM stations and made AM useable again as well.It is ironic that when you start digging around on the internet, this is not a widely known issue - likely because most people use streaming audio in their vehicles and only old farts listen to AM talk radio.  There are a few solutions to this, but many of them involved more DIY work than just plugging in two different Metra adapters the way I did.</blockquote>