Re: flasher indicator unit
On your existing Flasher Unit you will have a Green wire and a Light Green with Brown tracer wire.
If you use the AES Flasher unit 140112 you would connect the Green wire to terminal 49 and the Light Green /Brown wire to 49a. You would then need to add a (preferably Black) wire to terminal 31 and fit the loose end to a suitable earth point (under the Flasher unit mounting bolt?) on the car body. If the car has Hazard flashers these have a separate Flasher unit so would be unaffected by this mod. If you wished this circuit could be modified too with an electronic Flasher unit but I guess the Hazards are only rarely used?