My heat only blows on max, will not blow on auto or 1 2 3 etc.. Would this be the problem of the relays? If so, where are they located and which replacement relays could i use? do they have to be off a JZA70? (my car is a jza70 RHD etc..) Also another question i have is if a usdm powersteering rack would work with my car. i've been told yes it would and i've also been told no. Just thought i'd verify this, im pretty sure it wouldn't myself but u never know.