I took the standed radio out to fit my kenwood I brought surround and ISO harness plug it all in set the radio up etc went in to get ready for work started the car up and all my presets didn't save or any off the audio set it like its a new head unit again it gos back to demo when the keys are taken out. I thought the ISO harness is for the car is there away I can fix this

Very common issue. You have to swap the red and yellow wires. This swaps the permanent and switched live.

Cheers matey I try in the morning

Thank you TMB I owe you a beer matey

Haha,  you're welcome