Thanks for the offer of help, Bicester isn't far and I'll be off to Oxford on some weekends anyway! I may well take you up on that! 
I would like to power it like stock, I did mean that the aftermarket kits come with a control relay, however most kits have high and low settings and the OEM switches just push in and out so I'm not sure the included relay would be the correct one. Yes, when I meant binning the included relay I meant to run it through an OEM one, sorry for being a bit unclear.
My hope would be that:
I can put an OEM relay in the correct place in the relay box, the wiring from that to the switches already runs to the back of the centre console and just needs connecting, and the wiring for the heater elements runs under the seats and just needs connecting to the elements.
Figuring out precisely which OEM relay controls heated seats may be quite tricky, as obviously they weren't an option in the UK. This is a guess, but it is perhaps possible that the wiring for the rear window switches for a 5dr is what is used for heated seat switches as well, as they sit in the same place, although potentially a 3dr loom is a different loom. I would be okay with using the aftermarket relay if it functioned correctly with OEM switches, but definitely want to use OEM switches rather than aftermarket though, so that visually it is OEM. Another potential option would be to get the kit, and then simply get a relay that does what I want from an electronics shop.
Cully those diagrams are handy, thanks a lot!
Is B003 the relay?
I would like to power it like stock, I did mean that the aftermarket kits come with a control relay, however most kits have high and low settings and the OEM switches just push in and out so I'm not sure the included relay would be the correct one. Yes, when I meant binning the included relay I meant to run it through an OEM one, sorry for being a bit unclear.
My hope would be that:
I can put an OEM relay in the correct place in the relay box, the wiring from that to the switches already runs to the back of the centre console and just needs connecting, and the wiring for the heater elements runs under the seats and just needs connecting to the elements.
Figuring out precisely which OEM relay controls heated seats may be quite tricky, as obviously they weren't an option in the UK. This is a guess, but it is perhaps possible that the wiring for the rear window switches for a 5dr is what is used for heated seat switches as well, as they sit in the same place, although potentially a 3dr loom is a different loom. I would be okay with using the aftermarket relay if it functioned correctly with OEM switches, but definitely want to use OEM switches rather than aftermarket though, so that visually it is OEM. Another potential option would be to get the kit, and then simply get a relay that does what I want from an electronics shop.
Cully those diagrams are handy, thanks a lot!
Is B003 the relay?
This post is an artistic work of fiction and falsehood. Only a fool would take anything posted above as fact.
62k Diablo Phase 1 Gti-6: Project Thread
62k Diablo Phase 1 Gti-6: Project Thread