Well, I can't say that my memory is all too clear about what I did back in 2000, but I ditched the relays at some point and have the diode harness & no thumps. David sent me the diode harness (several, thank you!) and it was some time before I changed around the wiring. It's good now though. Sorry I can't be more helpful.

-Zeke

ps: if all else fails, the relays did work fine for me while they were in service.