No, not modify. You need an airpump, tubing and an airstone.
What I did was covered the top with crumpled aluminum foil, then pushed the plants into the two end holes, (only grew two). Then in the outside back hole I pushed the air hose through the foil. Secured it with duct-tape, hooked up the air stone and pump and didn't turn it on until the roots made contact with the water. Before that I just ran the built in aerogarden pump. When you switch to the airstone, you turn off the aerogarden's built in pump. You can still use the lights which should already be on a seperate power cord and timer.
Once the plants were ready to flower, I removed the lighted hood and flowered with a 90W Lighthouse Hydro 2009 quad band. Yield wasn't too bad. Filled up a 2L mason jar pretty well.
Be careful on your choice of nutes though. GH, Dynagrow or Advanced are probably your best choices. I grew with Fox Farm and it left a lot of silt on the bottom, so cleaning between ferts was a real pain in the butt.
Good luck!
P.S. This was my first grow.