Hello. Can anyone tell me if the brake controller connector, that you plug the pigtail from the glove box into, is under the dash of my 07 Acadia AWD SLT2, without the tow package? When it was purchased in California, the dealer installed a class III receiver and replaced the fuse panel and 7pin light connector works correctly. This has been fine for my little cargo trailer. This summer though I am going to Yosemite and am renting a travel trailer in Fresno, 90 miles from Yosemite. The empty weight is 4000lbs. The rental includes a weight distributing hitch. I wont be filling up the water tank until I pull in to the campground, and will dump all the tanks at the campground dump station before hitting the road back to Fresno, so it wont be much heavier but for a few hundred feet, aside from cargo, which I will keep to a minimum. I'm going to install an auxiliary tranny cooler in front of the radiator, and may even spring for the high capacity radiator from eBay. I plan to use the low gear mode to control shifting and keep out of the high gears. I know the non tow capacity is 2000, but I think it will be okay if I do this. I just need to add the trailer brake controller, and am hoping the plug is under the dash anyways. I doubt GM installed an entire new harness with a $400 tow option, but maybe so. Other vehicles I have owned, I have discovered the main vehicle harness is ready for most options, they're just not installed. If it were up to me, I would always buy the tow package, but my girlfriend bought this in California before I knew her. Any help on this would be appreciated.