[scandalcat1]

You need to wire a constant memory directly from the battery to the yellow wire on the H/U. To be safe I would add a fuse inline like, say .5a. I drilled a hole through my firewall right behind the master cyclinder for my 4 guage power cable for my amps and the direct memory cable.

The antenna has the ground built into in. If you buy the adapter, you should be fine. From what you are telling me however, it sounds like you already have a ground somewhere. Just run the cable for the memory and the stereo will power up fine.