Thanks to all who wrote regarding my door lock question. Perhaps this will help some of you who also have lock issues. Yes, it is true that the LOCKZILLA unit did not cure my door locking problem but I knew this going in. When I was at Rob's last year he hooked up one of his ZILLA units to my system to check it out and it did not work right. I knew that I was going to have to replace the solenoids but was unsure how the routing of the signal flowed. To recap: The drivers side switch would lock/unlock both sides but the passenger side switch would only lock the drivers side and NOT unlock it. I first replaced the passenger side solenoid........did not cure the problem. I cleaned the contacts on the switch toggles unit to ensure good contact. I then replaced the drivers side solenoid, Viola! Both doors now operated as they should!! So even though the drivers side would lock and unlock the passenger side it was the drivers side solenoid that was bad. One of you called this right but I decided to still swap out the passenger side first as a matter of testing the whole system. The LOCKZILLA unit will prevent the new units from burning up and I am very pleased with the fact that it even sound better. The old module made a loud clicking sound when activated. I am also eager to get the remote locking add-on as well as the launchers! I was quite pleased that I was able to do this project by myself. I'm not a mechanic but with the help and advise of this list I was able to remove my armrests and get to the solenoids!! Thanks Tom #005732