Picked up a nice used 15 Turbo XM for a good price, started programming a couple of spare keys, install went great on the XM, however, when I connected to my G4 the sled sounded like it wanted to crap the bed. Lights flickering, gauge flickering, buzzing sounds coming out of the sled. The program said "cant read ECU, somethings wrong". Needless to say I disconnected it pretty quick. Sled still starts fine, no codes, so it looks like I dodged a bullet. Any one using this system on there G4? Something screwy going on here
