Hi, only had my 1970 Chevelle a week (its been in storage 27yrs) just working my way through the car trying to get everything working.
Can anyone tell me is there a relay in the horn circuit ?
Also noticed as I was replacing bulbs for the interior lights..there is a light in the bottom of the rearview mirror, no bulb in mine so can someone tell me which type they take.
Gotta get me a workshop manual, which do you reccommend ??
Thanks, Steve

Horn relay is mounted on the radiator core support, driver's side. Can't help with the light bulb.

Thanks Hank, maybe thats where my problem lies.

The map light bulb is a #563 (4 candle power).

As for manuals, it all depends on how much work you will be doing on the car. The three bibles are:
Chassis Service Manual
Fisher Body Service Manual
Factory Assembly Instruction Manual