Thanks man. Now I am really scratching my head...there is no two prong relay in that schematic. I think the next logical step for me is to remove the hazard switch assembly...I got a feeling something is wrong there. I was able to solve my tail light issue. Found a partially broken wire out of the frame at the RR fender well.
Now I find that the alternator is not charging the battery...and the indicator light on the dash agrees. Odd thing is that all schematics call for dual power lines from the alternator to the solenoid. I assume this is to carry the needed current (rather than having one large wire). However my alternator only have one power wire connected to it. When the engine is running and even rev'ed up, the voltage on the battery (new battery) does not go up, so pretty clear there is no charge. Any particular reason why you can not run one large wire from the alternator to the battery directly and not to the solenoid? Sorry, different topic...but this one has my Rover stuck (unlike the other issues).