Hi cronin, done the radio re-wiring today but not convinced it will sort my problem, time will tell i suppose. Anyway i used the ignition fed wire on the cigarette lighter as my feed. It took bout an hour to do it was straight forward but bit fiddely. I did it as follows:-
Undo the 4 screws that hold the front panel on (2 are underneath the ashtray) which are quite fiddely to get to the other 2 hold the foot vents on either side of console, the foot vents are held in also by a clip so just give it a gentle pull when screws undown. You will need a 4mm Allen key for these screws.
when you have the scews out the top of the panel is held in by metal spring clips again give a tug to free them. After the panel is loose ease it to the left where you will see the fag lighter connection, it has 3 wires on it (yellow,black and red) the red is the ign fed wire. I scotch locked a wire to it, fed that wire to radio then scotched that to wire on radio which is needed for ignition fed feed. After i had cut it and taped the unused end as that is the permanent live. Hope this helps mate