My '99 has over three times your mileage ... and it is still my daily ride! I don't know if the yellow/orange anti-freeze is so bad .... but I have replaced my reservoir (the old one got too hard to see through.) .... anyway, there was a label attached that indicated the yellow was not to be used ... and that the green was to be used. I would think the owner's manual would indicate the same.
If the cables are original ... they are probably due. I'm probably on my third or forth set.