I need help. So lately my cruise control is very intermittent in 6th gear. It comes on but will not set, or if it does it unsets almost immediately. I tried pulling up on the clutch to see if that was the problem and it wasn't. I tested 5th and 4th and it'll set no problem. I also discovered when it's in 6th and it won't set I can get it to set by holding the stick to the left or right but in natural 6th position it is very intermittent. I'm guessing there's some kind of neutral or gear position switch that's tied into the cruise control. Any help or advice on what to do ?