There'll be a rocker switch on the dash for Antenna Up & Down, really hasn't got anything to do with the radio.
Also, there's a conduit that goes under the rear seat to protect the wiring. They're tough to find in good shape, but I've sent out a couple that I'd found in the wreckers.
I'll take a measurement on my 69 2+2 which has a factory rear antenna and and my 69 American car with power antenna and post both tomorrow. A few thoughts though...
a power antenna wasn't offered on any 69 Canadian Pontiacs, only the chevy spec manual rear antenna option (offered repro, it was used on Camaro, chevelle and Impala series)
the power antenna switch mounted on the far left position on the dash (to the left of the power top switch). The system was manually controlled with no connection to the radio. it only went up or down when you operated the switch.
I wouldn't set up your antenna to work automatically with the radio, two issues: first there are no limit switches so the motor will keep going till you cut the power which will wreck the teeth on the motor in no time, second the mast is very long when fully extended, looks silly and gives bad reception for FM (FM likes about 30" of mast, too much you get echo and flutter)
a factory (US model) power antenna isn't located in the same place as Canadian rear antenna cars
the Bonneville and Catalina power antenna's are mounted the same distance from the front of the trunklid so the bonneville power antenna ends up being 6" further from the rear bumper say than on the Catalina because the Bonneville has a 6" longer rear deck
the factory power antenna mounting setup for US big cars won't work properly on a Canadian car because the inner wheelhouse where it bolts to is quite different in terms of shape and location
However you can easily fabricate a small lower bracket to anchor to the lip of the wheelhouse (Ames sells the GTO lower clamp in repro that probably would work better than the one you have)
Make sure you ground the body of the antenna to the car body just under the pinchweld for the trunk weatherstrip. A weak ground will really slow up the motor operation.
I know it doesn't affect the 69 option but I've often wondered why the earlier years of Pontiac power antennas were straight up for Canada and angle back for the American models. My 66 Grand Parisienne had a factory power antenna and that was straight up. And as you say the American ones angled back. interesting that the 69 Canadian model Pontiacs didn't have a factory rear power antenna. Either I've never realized that before or it's another one of those things that's been forgotten.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
The thing on the right in the very first photo of the thread is the rear seat cable guard. It protects the coaxial and power cables under the rear seat cushion on the passenger side.
I measured the factory installed antennas on my cars, to hole center measured in inches in all cases:
Rear manual on my 2+2; From forward edge of trunk lid back to antenna... 14.5 From sharp outer edge of quarter to antenna... 2
Rear power on my Catalina (same on my Bonneville) From forward edge of trunk lid back to antenna... 11 From sharp outer edge of quarter to antenna... 1.5
The farther out to the right location on the Catalina is probably related to the mounting point on the inner wheelhouse to insure left to right verticality. The reasonFor the Catalina antenna being further forward is probably related to its greater angle, ensuring that someone walking around the car doesnt get an antenna tip in his face
The reason the 68 and older Canadian Pontiacs had a vertical power antenna rather than angled like the Catalina is because they were Chevrolet antennas.
-- Edited by North on Saturday 16th of November 2019 04:57:26 PM
-- Edited by North on Saturday 16th of November 2019 04:58:42 PM
The reason the 68 and older Canadian Pontiacs had a vertical power antenna rather than angled like the Catalina is because they were Chevrolet antennas.
I believe it but it seems odd they would do that because the 66 Caprice 1/4 panel and the 66 Grande Parisienne quarter panel sure weren't similar as far as mounting the antenna goes.
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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles
1966 Grande Parisienne, 396 1 of 23 factory air cars
Hey guys,
I really appreciate all the help.
Funny not one person posted saying "don't do that"
If you go up to the top of the page and click the eBay link and search for these antennas you find the other 1969 has updated his price. He now wants $400 US Wow !
The is also a 63-64 Canadian one near Winnipeg.
The thing on the right in the very first photo of the thread is the rear seat cable guard. It protects the coaxial and power cables under the rear seat cushion on the passenger side.
Thanks John, I'm not used to seeing a side view, but I thought that's what it might be. In my earlier posts I called it a "conduit". I know they're sometimes tough to find as they're in a rust prone area.