Az. Adding a V/U/HF motorized mount to the roof/tail gate
This is a Diamond 4000 motorized lip mount that I added to my Blazer, I got sick of bashing my $100 antenna in parking garages or low lever limits roof's, and it did it no good so I added this to my blazer, I fished a #16, 4 Conductor cable thru the roof lining (cloth) and pulled out the end, there i had tied it on to my fish tape, you can use almost any type of metal you wish, i just happened to be in the security alarm bizz. anyhow, once i got the cable to the end i dilled 4 holes to house 4x 8 32's nut washers and screws, it was a pain getting the nus lined up but i did it, just takes a bit of time.. i also made another hole for the ground strap (wire on left of pic) so it has a good ground connection to the body of the Blazer, then took the cover off the motorized mount (top) and took off the already attached 12v wires and
re-soldered my new #16 wires to the motorized mount, replace cover and then when in to the drivers side and then popped out one of the unused covers on the dash and drilled a small hole to house my DP.DT toggle switch and mounded it then tapped it into my 12v Aux wires.
Good for car parking garages so you don't damage the Antenna, up on the switch is up and down is folder over middle is off (No 12v power). simple.