cd changer not working

I noticed in the week that my rear washer wasn't working. Having done some searching on here i removed the carpet from around the wheel arch and found that the hose to the washer had become separated at the rear of the wheel arch area.

I have dried the area out but if i try to use my cd changer i just get the message "no changer" on the head unit.

I also can't even eject the cartridge to get my discs out. Is there a fuse somehwere that i don't know about? i am sure i have chekced the ones in the fuse box but they all seem to be ok.

I am suspecting there is maybe an in line fuse for the cd changer at the rear of the symphony head unit. But it would be good if someone could onfirm this?

Thanks