i bought this new cable:
http://www.ebay.com.au/itm/3803846830 ... _trksid=p3984.m1423.l2649hasnt arrived yet but will let you know how it goes when it does come.
i've tried a cable off a h150 and the cable that i already had (dont know what its off) and both didnt fit. the h150 cable seemed to short where you adjust the cable (where front joins rear)
if you have some time over the next few days could you post a pic of where the mounting is on your h165 for the handbrake cable?
cheers