rmc334

Thx for the info with regards to disconnecting my battery first. Here is an actual photo of my 2008 es 350 but manual shows what fuse is what but unfortunately they show the relays but make no mention of what relay is what. I've scoured the internet and nothing on this precise year and model

When I open up the fuse box there are like 7 relays. Does anyone know which one is the horn relay and any other info on what precisely I should order.