Hi again. Read everything that you can get your hands on and retain everything that you read. If you have a clear idea of what's supposed to be there and a clear view of what's actually there, the part of the later that won't superimpose over the top of the former is probably the source of any problems the system might be having.:gringreen These cars just aren't that complicated. And thank you.you guys know so much thats the way i would like to be.