Backup camera delay problem

Searched around and couldn't find any info. My backup camera works fine sometimes, then sometimes it takes up to a minute to turn on. I have the entune radio with a Frac harness. I took the Frac harness out and it worked fine for a day then started doing the same thing. No rhyme or reason to it, dry / wet, hot / cold outside, sunny / dark. I am at a loss. when it does come on it works fine, no stuttering or glitches so I doubt it is a loose connection, although I checked all of them by the radio. Same issue whether I shift into reverse or use the Frac harness button to turn it on.
At this point I use the frac harness switch to turn it on about a 1/4 mile before i will need it, but it sucks when I forget. Any ideas?

 

Bump.....