The Chiltons and Haynes repair manuals will have the wiring diagrams. I have a 94 Trans Sport SE. I have both of those guides and they cover 1990 - 1999 Trans Sports.
Wiring for 91 Pontiac Transport: http://www.auto-olds.ru/PONTIAC%20TRANS%20SPORT%201991.pdf
need diagram for wiring for 1986 transam
http://www.thepontiactransampage.com/tips.html
It was a Pontica Trans Am.
Tachometer Filter Tach Wire Plug Connector ON A 1979 TRANS AM
Buy a motor manual with one in it.
You can find a power window wiring diagram for your 1977 through 1979 Pontiac Trans Am in Pontiac service manuals. The service manuals can be found at most local libraries.
http://92b4crs.tripod.com/86wiring/86wiringindex.html this website helped me figure out how to put the wiring on my 86 TA
Wiring diagram for 1972 ford f100 truck w/360 engine automatic trans, AC & Power steering?
Go to your local library and get a chiltons repair manual for your year.
red is usually the hot wire.
chiltons of course!! If you want a FREE ONE goto www.autozone.com