I was there I helped blue hatch put this in his car THE TACH does not work! IT was instaled correctly when the tach did not work we switched clusters with my buddys 94 ex with a factory Tach That works an the tach worked In bluehatches car and the jdm cluster did not work in the ex. and the ex cluster worked in both cars. IF it was some thing that you say burned it out in bluehatches car why did it not burn out the ex cluster also? It does sound like you are trying to make things right with Bluehatch I know thing are stressfull around the holidays for every one Im sure he delete this post or give you great feed back If he got a refund