How to keep winch cable from bunching up on one side

(I looked on the archives for an answer to this question but did not find one -- sorry if this is a repeat.)

We use a winch to get our little trailer up our little driveway -- the trailer is parked with the nose toward the garage. There is no way to tow it up the driveway -- this is in Southern California, with very small lots for each house.

I mount the winch on either a chain running from a bolt in the concrete, or else I mount the winch platform on the bolt itself. Either way, the winch easily pulls the trailer up the incline of the driveway.

The problem is that the trailer approaches its parking area from a slight angle, since the opening of the driveway onto the street is offset from the parking space. Since the trailer is off to one side of where the winch is mounted, the cable tends to bunch up on that side of the winch as it reels in. I have used a galvanized pipe to push the cable to the other side of the winch drum, using leverage. That method works, but not very well -- the cable slides around on the pipe, and it takes a lot of force to move the cable.

So that is my question -- what method do you use to ensure that the cable winds smoothly onto the drum, without bunching up in any particular area?

Thanks in advance for your advice!