The seats are from a mk1 TT, so about 1998 to 2006.
This was my design, 25x25mm angle bar 5mm thick, probably an overkill but better to be safe than sorry.
Underside of the TT seat, its designed to be mounted to the floor.
I transferred the mounting holes from the old seats to the angle bar.
Therfront mounting for the TT seat is not flat so needs to be adapted.
Cut with a hack saw.
Another trial fit.
I had to cut out a notch due to the TT seat height adjuster.
Welded on captive nuts for front bolts.
Tack welded it together.
Double checked the fit.
All welded up and trimmed to shape with a strengthening piece welded below the notch.
Fitted in place.
Primed and painted black and the job was done, except I need to swap over the seat belt buckles.
I also plan to fit the heated seat loom and controllers from the TT.
No radio? I plan to install a bluetooth amp instead and play radio/streaming etc from my phone