Even a lot of the simpler relays from Honda are ~$20. How are these things rated? I'd rather just get the one from Autozone or Napa if I can.

 

They should be rated by amperage, at least the ones I see from radio shack are. Ive usually just use the 30amp rated relays for everything.

 

it depends on which relay you are talking about. the ones that plug into the fuese boxes directly are going to have to be the right ones, the ones that hang or don't plug into anything can be what ever you can find.

 

ATTS fail-safe relay. #20 RELAY ASSY., POWER (4P) (MICRO ISO) (MITSUBA)http://www.hondaautomotivepart...CABIN
I ordered it from the dealer yesterday. Probably is specific.