very easy. i got the VDO guase sender from bmp desing it came with
oil pressure guase and the adapter. i just repaced the stock sender and with the VDO sender that came with two post , one for stock wire and another for the gause and tap the power to the ignition.now the gause works and the oil lite on the cluster work too.( i used the cuda cell phone hoder and cuted two hold out for the gauses it fit perfectly)