so got 2 used VW blue tinted heated mirrors (genuine) for £25 posted off ebay, just chanced my luck as the guy was wanting around £32-£34 posted for them and he accepted my offer of £25 so bonus!
fitted them today, didnt realise i would have to disect the wires and extend them as the heating element connectors are at the other side and the wires wouldnt reach.
removed the old mirrors and started using 'bullet style joiners' to extend the old wiring....(cut off old connector and attached these.
then added the extended wire (just stabbed a guess tbh)
i put new connectors on the end of the wires that resembed the ones i cut off, (sorry forgot to get pics now) i then hooked it all up and covered most of the wires in insulating tape and then fitted, the taop also hid the red wires out the way when fitted. done like things on show like wiring etc, so all seems pretty hidden.
happy, nice little mod, i did break the old driverside on removal and it wasnt coming off as easy as passenger side so be careful if anyone else does this mod, the mirrors even though used are in great condition, few little marks on driverside just at the wide angle bit but better than my old one, hardly noticable tbh, i then gave them a clean and noticed the rain was clinging to them quite alot which is annoying in view, so went to get rain-X which was empty so opted for 2 coats of HD wax, should do the trick and get the rain running off them.
i dont know a good way to test the heating elements but i will just hope they work lol, hopefully my wiring works ok.
bit of a essay for a small update but owell, might come in useful for someone.