This thread will offer some insight as too which Pioneer wireless remotes are supported by the PAC WRI-P with use for the X series. Please detail the remote model number, the features that are supported and the features that are not supported by the remote. Please follow the format below. All replies not following this format will be edited or deleted.

Remote Model Number:

Navi Unit:

Features Supported:

Features Not Supported:

Remote Model Number: Pioneer CD-SR1 Sterring Wheel Remote

Features Supported: Volume, Track Up/Down, Seek Up/Down, Preset Up/Down, Band, Source.

Features Not Supported: Hands Free, Voice Recognition, Menu.

Remote Model Number - Pioneer CD-SR11 Stering Wheel Remote

Features Supported Volume, Track Up/Down , Seek Up Down . Preset Up/Down. Mode Source . ATT

Features Not working POS- Guide Voise

just noticed Amazon cent me a CD-SR11 when i order the 100 lol

Remote Model Number - Pioneer CXC2665  - http://articulo.mercadolibre.com.mx/MLM-409979117-control-remoto-pioneer-cxc-2665-_JM
Features Supported Volume, Track Up/Down , Seek Up Down . ATT. Band, Source buttons
Features Not working - Direct, Audio, Func, number buttons, Direct, Clear (pressing clear turns volume all the way down as though holding the Vol down button, even if you dont keep the remote pointed at the remote at the IR receiver) 

I had this remote from an older Pioneer headunit, and had hoped it would work as  back seat remote, but it is pretty limited in what it controls.