I have a 99 Tahoe that has the towing package and plan to tow our travel trailer this summer but have a few questions. The hitch on the Tahoe has a round 6 pin plug and I think my camper is a 7 way plug, is there an adpater for this or do I need to put a different plug on the hoe? Question 2. Do I need to have a brake controller installed to pull a trailer or is this "built in" with the towing package. If not, could I put this in or hire someone? (I'm not a mechanic.) Question 3. Our trailer is around 7,000 lbs. and I think that is stretching the towing limits of the vehicle, but if I stay on flat ground and within a 500 mile radius will I be OK? I hope these questions don't sound too stupid but I am a newbie to all of this and any help would be welcome!