I have a project car that i do all my own work on it's a 1977 Pontiac Trans -Am i took it to Mob for an alarm and i don't have any problems with the work and i seen the connection that the install tech did and they are a very good solder connection which I'm kinda anal about cause this is my BABY so I am very impressed with the work quality and the turn around. It was dropped in the morning and picked back up in the afternoon and it works flawlessly i have no problem with sending anybody down there to BOJ