Alright...my Outback had cables and I had to replace the gearbox on my kitchen...easy for the end user, and fairly easy to get the parts.
Look for the BAL guide on install/adjustment. I bought a tool off Amazon and cable ends as they may fail....again, easy for the end user.
As far as the popping, could very well be the cables are twisted and jumped a pulley. Check the slack and ensure the tension is proper when out AND when in. They should remain under tension, but not like a piano wire, and definitely no drooping.
TV: 2015 F-350 DRW, CC, 4x4, with 14k GVWR package, 98 gallon TransferFlow Aux Tank, Timbren Shocks
TH: 2014 Voltage 3950, Sailun S637 all around