never mind found a company that does it.
http://www.cellphonetechnews.com/
Guidepoint - a stolen vehicle recovery, driver safety telematics product
supplier - sold through finance departments at new-car dealerships in the United
States and Mexico, has launched a new service that lets drivers track and
control their vehicles with a cell phone, BlackBerry or other Web-enabled
wireless device. The Pontiac, Michigan-based Company said it has created a
wireless access protocol (WAP) version of Guidepoint that allows subscribers to
track their vehicle, unlock doors, start the engine and honk the horn with a
wireless device or cell phone. Says Guidepoint CEO Rand Mueller: "We developed
the WAP functionality to give our subscribers more choices, now, Guidepoint
users can track and control their vehicles over the Web with a PC, laptop, cell
phone, mobile device or by simply calling our 24/7/365 response center and
speaking to a Guidepoint Personal Assistant."