put panosonic deck in 85...yellow and red tied together??

[jasonroman]

brother in law put radio in for me...
tied red and yellow together.
i have a wire running from wires for radio to fuse box. as was there before i got the truck, harness with wires attached and then a yellow running to fuse box.
problem is, no memory. so im thinking the yellow would be the constant that would keep memory.
if im wrong...well then im wrong.
but i knwo the radio works fine. just no memory.
got the floating yellow going into the radio fuse.
should i change where the yellow goes into fuse box or do i have to seperate the red and yellow and then....????
thanks for any help.