Ford fiesta mk7 wing mirror. Even when I feed the wire in it always seems to slightly fray the wires. Only even once got it through clean but also trying to get the plug connector through the hole is another pathetic one.
I tie a string to the plug connector and then pull the mirror out and attach the new plug to the wire and just pull it back through but for some weird reason it gets fookered. I think it's when I'm trying to drag the connector plug back through that stupid tiny 20mm hole is where I damage the wires