A:AnswerAccording to the Maestro website it is compatible with the Pioneer avh-2550nex.
You can plug in your vehicle and radio here to verify - the site is for accessing installation guides, so if it finds a matching guide for your vehicle and radio that means both are compatible with the unit.
https://maestro.idatalink.com/product/product/product_id/101
A:AnswerThis box can be reprogrammed to work for your vehicle. You can check how to do so when you visit the iDataLink site. This device allows you to retain factory steering wheel controls when you install a new car stereo. Buttons can also be potentially remapped when you set the device up from your computer with the microUSB cable included
A:AnswerThis device works very well. It allows me to use the factory steering wheel buttons to control my new sound system.
Thank you for suggesting and installing it. Your install man did a fantastic job making everything look and work like it came with the vehicle from the factory.