My car vibrates when stopped, especially with the AC on. Mechanic buddy said its the motor mounts, he’ll replace them if I buy the parts. I drive a 2007 Honda Accord VP. It’s a 2.4L engine. Looking at mounts and mounting kits on Rockauto/Partsgeek, don’t know whether I need to buy front and rear engine mounts or a full kit with transmission mounts too. One kit has 4 pieces, another 5, and another 6.