bompy

I beleive "Tune It" allow you to try their units before you buy. They just sit between the ecu plug and the ecu socket from the main ecu loom

I had all these problems , drove me crazy. In the end I got a small plastic mirror and a good small torch. I was then able to identify the clips. Practiseing working in mirror image now enables me to change the bulbs in 5mins or so. I still cut my hands on sharp pastic flashes when frustration takes over.