I have used compression connectors on my qx56 one of condenser lines that goes into the dash had a pin hole, but was on a straight section, was able to cut about 2 inches off, found a hose from a junkyard, and cut 2 inches off, used 2 compression connectors from orielys, it is a very sensitive area, make sure it’s very tight, I wasted a lot of Freon being cheap, but I was able to get it to work — the key is to cut line with a pipe cutter, need clean cuts