I just bought a 2008 Grand Caravan SE Value. I didn't necessarily want to pay the dealer the 0 they said it costs to install Cruise Control, because I'm pretty sure it's a rather simple install since it probably has all the sensors and wiring in place already. I have some questions, hopefully to be answered by a friendly Chrysler Garage tech. Does anyone know a dealer who will sell me a cruise control unit on- line? I'm presuming there's an advantage to having a Chrysler designed unit since I read that they will control acceleration upon descent of a hill by downshifting. Is there any big downside to purchasing a generic unit like an audiovox? I presume that this won't control acceleration.the same was as an OEM. Will they interface with the existing sensors, etc? What is involved in installing the cruise control? I'm quite technical and competent; I've done motor rebuilds, heads, clutches, etc.