sony cdx-a55

[pschiefele]

I got a sony cdx-a55 from a guy at work and would like to install it in my truck but none of the wires on the RM-X1A remote commander are labelled. On one side is a red, black and yellow. i assume red power, black ground but what is yellow? and on the other side is are three little wires white, white with blue and black do these go to head unit or amp or what. Please help!

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[Brock 5,000+ posts]

yellow would be your constant 12v memory. The red wire is the main power that engages when your ignition is on, the yellow is constant power so your clock stays set and stuff like that.