SL55/63/65/R230 AMG: SL55 STEERING WHEEL UPGRADE 12v supply
can anyone tell me where a 12v would be, i have airbag connectors and i have 3 pin connector which I believe is cluster, and the steering wheel buttons, i have tested with a multi metre on main plugs but only getting 8-10v max and its constantly moving its not stable, not sure wether i have a wiring problem but could do with someone who has solid info on this car, thank you


