During a trip to the UK, at the start of the trip home, we got the message on our 4500 “NO GPS”.

I am now in the stage of determining the cause, but I suspect the Garmin GPS puck (with a male d-sub connector), as supplied by AFS.
For testing purposes I would like to hook up a Garmin handheld (I think it is a 395) but its data cable ends in a female connector. Is it possible to make an extension-cable with a male plug, assuming the pin-out of the plugs is the same?

Victor Kruis,
The Netherlands.