Tiptronic button wiring diagram

[Sei]

I want to disable the 2 buttons on the steering wheel and add my own button somewhere close to the gear selector. Anyone know where/which wire loom to disconnect and tap into the circuit?

1999 996 C2 Tiptronic

[Tool Pants]

The shift buttons run to the 2 wire blue connector on the tiptronic unit on the left of the picture. The unit on the right is for a manual transmission, so ignore it.

[Richard Hamilton]

I want to disable the 2 buttons on the steering wheel and add my own button somewhere close to the gear selector. Anyone know where/which wire loom to disconnect and tap into the circuit?

1999 996 C2 Tiptronic

I suppose my question is WHY? Or rather, wouldn't you be better to leave the switches active on the wheel, and add an extra switch by the lever?

My old 993 Tip S had the best arrangement with buttons on the wheel, and the lever slid into a "manual" gate. You could shift with either the switch or the lever. At first, I found the 996 arrangement (with just wheel switches) a bit frustrating. For example, when pulling away from a junction in first you invariably want to hit second while the wheel is turning. I found that the way to overcome this was to flick the lever into Auto and back. This makes the upshift but holds it in second. Hope this helps.