Shortly after purchasing my 95 SHO the EATC quit working. After replacing the 15 A fuse the heater worked ok but went completely dead after reaching about 1200 RPM's. Both the EATC and the subwoofer cut out at about that RPM regardless of the gear the car is in and then return once the car is back at idle. If anyone has any opinions they would be greatly appreciated. The only other problem I am having is both of the front windows work fine but the back windows are inoperable. Are they all on the same circuit?