Hi Paul. I’ve just read the thread on the MR2OC and after about 30mins of reading god knows hows many replies etc. The op didn’t listen to a thing. Quite rightly as you said he should have taken it back to the original garage to fix. Sounds like a proper back street cut and shut shop. But he choose to take the car else where probably due to him owing the garage a undisclosed balance on the bill. Still no excuse for dangerous workmanship though. Its probably worth a read to save wasting your time. Reminds me like that yank who you did a harness for but still refused to listen to your knowledge and guidence. Up to you pal.