This may give you some ideas:Cool -
Two things - I want to plug a GPS in and have 5VDC available at pin 4 of the DB9 connector. It appears there is 5VDC based circuit board markings near the DB9 connecotr but not when measured with a DVM. I am also considering mounting a GPS receiver inside unit with external antenna. Need same info for DB9 connector or schematic to determine where to get 5VDC to power the GPS.