yup!!
the gamma head unit has an extra socket in the back for line out and remote power (amp switch on wire etc), all you need is the correct adaptor to take your from the gamma (made by blaupunkt??) to normal line out and remote wire, but its is there so dont panic, if i can find a link ill post it here for the plug if not go onto ukmk4's site and ask on there someone will help no probs!!
Gaz