He should make sure his grounds are making good contact by cleaning them. Where they connect to the body I would suggest going as far as scraping the paint in the little area underneath.
2003 Ford Focus ZX3("FUBARCUS" was "Brokus") - old and still bustedTo view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2012 Subaru Outback 6 speed manual - current DD