Renault stereo not working

[Brooky90]

Hi everyone I'm posting on behalf of a mate he has a 2004 renault clio. He has just bought an aftermarket stereo, fitted it and he says it doesn't work something to do with the wire's in the car I couldn't really understand what he was saying at this point as the conversation was on the phone with bad signal. Anyway he went to Halfords and got them to take a look and they said he needs an ignition feed. Anyone shed some light on what they mean and how he can get the stereo working? They also said it will take about half a day to get the new stereo working which I think must be bullsh*t. Any advice asap much appreciated.

[Brooky90]

Had to post this again as my last post went missing can someone get back to me ASAP