There ain't much aftermarket crap that works on Volvo. On anything else for that matter. Groton may have OEM wires or just figure that the big assed hassle isn't worth the BS. I have gotten tired of having to rig things to fit or finding it just don't work. Go ask your dealer if he'll give you a break on the parts if you quit mail ordering or using aftermarket junk. You might be surprised. If not, there is a site called autopartspeople.com where you can find a dealer that participates in internet sales. I buy Isuzu parts from Auburn, WA and live in SC. Recently went to local dealer and told them I could get a pump cheaper elsewhere and they came down to something that made the convenience worth the difference. Just my opinion--I could be wrong.