When i first bought my Celica (first registered 1-1-1994) the only thing that didnt work was the electric aerial, so made enquiries and found out from toyota they were not made anymore. So, found one in a breakers yard in Cornwall called the guy he assured me it was working and i got it the other day it should have been a straight swap over but wasnt. I installed the seconhand unit and it didnt work so called the company and he reassured me it was working but said he couldnt test the relay thats inside of the unit..ok i have a couple of questions im wondering if anyone could answer for me....on installatiuon i noticed there was a single black wire attached to the body close to the ariel unit I'm assuming it's an earth of some kind, but is this for the aerial or what?? and if so where do i connect it to. Secondly, how can i get the aerial up and leave it up i hate driving listening to radio 2 all the time. Lastly, I do have my old unit minus the silver aerial (well most of it) and in view of this new unit i have is up for grabs if you want to take a chance on it.