95 993 marker lights

[r lane]

a 1995 993. The turn signal/marker lights are on (not blinking). The two indicator arrows on the tach are on as well but not blinking, key off. We have pulled out the two tall relays behind the left most gauge. Also the one in the right side of the front console and the flasher switch. None of this seems to have an effect other than this problem corrects itself momentarly and then back to failure. The ignition switch gong is erratic. Sounds a classic ground issue, but we haven't found one. The immobilizer systems on these cars are Frankenstienish, am wondering if related. Any help is appreciated. Bob