Thankyou for the info, I went for a similar cable, however that did not fix the problem. I was not getting the "Red Line" through the GPS sign, but the Sat Nav was not working, so after lots of soul searching I contacted "Navtvman" found him via EBay and he sorted me out.
My DVD player was shot, laser not reading and eject/input mechanics very poor, he gutted it for me and it is now working like new. Turned it around in three working days, really approachable on the phone, well happy.
Set me back £250 but the difference is amazing.
mod edit..links to illegal sat nav software company's is against forum rules
58 Plate RR Vogue L322 with Denso Sat Nav in the boot,