Definitely check out the Dinghy Towing forum at rv.net. There is a wealth of information there which you can search. There are two key pieces of knowledge to arm yourself with prior to researching this issue. 1. what is the towing capability of your motorhome, including hitch class? 2. can your car be towed recreationally, either 4-wheels-down or on a dolly?
After determining your MH's towing capability (and I'm guessing that will be fine as a Jetta is not a large vehicle), the next major step is to determine whether your Jetta can be towed 4-wheels-down. The best way to determine that is to look in your owners manual for language relative to "recreational towing". It should tell you if and how it can be towed. You can also check with a VW dealer, or more reliably call VW themselves. Another possibility is to check out the Dinghy Towing Guide for your model year at
http://www.motorhomemagazine.com.
If your Jetta cannot be towed 4-wheels-down (which many people including myself feel is the most convenient method), it could possibly be towed on a dolly, in which the front wheels of the Jetta would be up on the dolly and the rear wheels are on the road. This is less convenient as hookup can take a bit longer and you also have to store the dolly at your campsite when not towing. But, those that use dollies will often swear by them.
If you can tow 4-down, you will need to research options for towing systems, such as Blue Ox. I use the Blue Ox Aventa tow bar system which works very well for me. There are several makes that work well. Most employ a base plate which is permanently installed on the front of your car (mostly hidden out of sight), and arms which connect to the receiver on the back of the MH and then attach to the baseplate. It's pretty simple. There is also a connection made between the vehicles for wiring which will operate your Toad's brake lights.
Finally, the last remaining consideration is for a supplemental braking system to operate your Toad's brakes. This is necessary as your MH's brakes were not designed to accomodate the added braking necessary for the weight of your toad vehicle. Many people like myself employ a system such as Brake Buddy which actually sits on the floor of your car and engages the brake pedal when necessary.
After researching a bit on rv.net, call or visit a local rv dealer or Camping World and talk to them about your options. It typically can cost anywhere from $1500-3000 to properly set up a vehicle for towing, so make sure you are armed with all the data you can gather to ensure you get the best system for your needs and don't overpay.
Good luck!
