Hello. New member. 2004 vogue no amp fitted.

Hello, I am new here but have been lingering around for years, have had a couple of p38's. I have just got a 2004 3 litre vogue. It has a list of issues that I am slowly working on. I have read many threads on different site and been unable to find help to my current issue.
It has been posted about many times, but I have no power at all to my infotainment system. I have checker fuse 49 and that is fine. I discover that the amplifier is missing, I assume it had problems. Would the missing amp cause the infotainment to have no power?
The previous owner did not mention the missing amp and suggested it was due to needing a new harness behind the head unit.
Any help would be appreciated.

Pulled out the stereo and it isn't connected. Looks like someone has messed with the wires and the plugs I found, do not match the head unit.

Hello and welcome to LZ
Best to ask over in the range rover section of the forum https://www.landyzone.co.uk/forum/range-rover.10/

Cheers. Still getting used to navigating the site.