Compatible with Pioneer "Sub-Display Output" Headunits* The display indicates channel number, track number, operation status, etc. Satellite Radio Text Indications** ATT (Volume Attenuator) Button Dimensions (W x H x D): 3-7/8" x 2-13/16" x 1-13/16" (98 x 72 x 46mm) * For details about compatible units and available controls, contact Boat Tunes @ (313) 300-9140. ** Available in conjunction with DEH-P7700MP, DEH-P770MP, DEH-P6700MP, DEH-P670MP, DEH-P4700MP, DEH-P470MP and DEH-P3700MP