Hi there, I hope someone can help. I've reviewed previous posts but can't find anything. I'm wanting to replace the Yaris radio, just got an ISO adaptor from Halfords which states its for all models except an MR2. Its a 10 pin and a 4 pin. Problem is the one in the Yaris is an 18 pin - configured like this: (x has a wire 0 hasn't) xx x0 xx 00 xx xx xx xx x0 There's also another 8 pin taped off with 3 wires going into it. Does an 18 pin adaptor exist? anyone know where to get one? Alternatively does anyone know what the various wires are?