So I had the Best Buy "certified technicians" install my new stereo/cd player that i bought from best buy in my 2003 taurus SES. Everything appears good for a week or so. Then, I go to start my car on sunday morning, and the check engine and transaxle light(blinking) go on. Then I notice the trans is shifting very hard. But I find out from the owners manual that this is a trans restriction because of the transaxle light being on. The car is still under factory warranty so I take it to the dealership. So I get the call today from the transmission guy at the dealership saying that the engine codes are comming up as electrical problems, and its due to someone tapping into some wiring harness. This has to be related to the radio install. Since this wont be covered under warranty(problem caused by aftermarket modifications) my question is will Best Buy pay for this? Thanks for any input.