or... as you suggested:
" I'd install it and wire it as directed in the instructions, EXCEPT, the line they say to connect to "reverse", I'd connect to the glove box power lead or the cigarette lighter power lead, those come on with key. In this way, it would come one and stay on anytime the key is 'on'. "

i think i like that. but, how can i find the glove box power lead (or cigarette lighter power lead)
thanks again, you have been a great help...and polite too.